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Cheap flights from Portland (PDX) to Boulder, CO from $48

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PDX — DEN
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Portland to Boulder are usually found in January or October, booked 49 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Portland to Boulder

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Boulder (BD9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 30, 2024.

Popular in

July

Cheapest in

January

Round-trip from

$192

One-way from

$98
High demand for flights, 30% potential price rise
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Best time to find cheap flights, 38% potential price drop
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From Portland to Boulder
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One-way flight from Portland to Boulder
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How far in advance should I book a flight from Portland to Boulder?

To save on the cost of your flight from Portland to Boulder, book at least 50 days before your planned departure. Booking around this time can save you about 67% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $153 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $228.

What is the cheapest month to fly from Portland to Boulder?

January is one of the best times of the year to fly to Boulder from Portland. Prices for January average $178 per person but you can even find prices for as low as $49. The most expensive prices can be found in the month of July. Opting for a January flight can save you 43% on your journey compared to booking in July

What is the cheapest time of day to fly from PDX to BD9?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Boulder as you normally would.

Cheap Frontier flights from Portland to Boulder

Explore cheap flight options specifically provided by Frontier for the route between Portland and Boulder. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Peruse some of the lowest-priced Frontier flights we've found from Portland to Boulder. Deals update often to give you more flight options matching your criteria
Tue 6/48:07 amPDX - DEN
Nonstop2h 42mFrontier
Thu 6/66:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/28$95
Mon 6/1012:49 amPDX - DEN
Nonstop2h 33mFrontier
Sat 6/155:55 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/30$96
Tue 6/117:53 amPDX - DEN
Nonstop2h 40mFrontier
Thu 6/136:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/29$97
Mon 7/812:49 amPDX - DEN
Nonstop2h 31mFrontier
Sat 7/206:00 amDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$98
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Mon 6/105:01 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$99
Tue 6/1112:49 amPDX - DEN
Nonstop2h 33mFrontier
Wed 6/1910:07 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$100
Tue 8/612:49 amPDX - DEN
Nonstop2h 31mFrontier
Tue 8/139:55 pmDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/29$101
Mon 7/2212:49 amPDX - DEN
Nonstop2h 31mFrontier
Tue 7/2310:16 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$102
Tue 7/212:28 amPDX - DEN
Nonstop2h 33mFrontier
Sat 7/66:05 amDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$103

Cheap Delta flights from Portland to Boulder

Explore cheap flight options specifically provided by Delta for the route between Portland and Boulder. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Some of the best deals we've found on Delta flights traveling from Portland to Boulder. Make sure to examine the flight information before completing your reservation.
Tue 8/135:40 pmPDX - DEN
1 stop4h 48mDelta
Wed 8/146:05 amDEN - PDX
1 stop4h 52mDelta
Deal found 5/29$196
Sat 6/295:37 pmPDX - DEN
1 stop5h 02mDelta
Mon 7/15:30 amDEN - PDX
1 stop4h 34mDelta
Deal found 5/29$216
Wed 8/75:15 amPDX - DEN
1 stop4h 54mDelta
Tue 8/136:05 amDEN - PDX
1 stop4h 52mDelta
Deal found 5/29$232
Mon 7/225:10 amPDX - DEN
1 stop5h 49mDelta
Fri 7/265:20 amDEN - PDX
1 stop4h 41mDelta
Deal found 5/30$236
Sat 6/85:15 amPDX - DEN
1 stop5h 05mDelta
Tue 6/116:36 pmDEN - PDX
1 stop6h 16mDelta
Deal found 5/29$241
Mon 7/85:15 amPDX - DEN
1 stop4h 54mDelta
Sun 7/146:05 amDEN - PDX
1 stop4h 52mDelta
Deal found 5/29$252

Cheap Portland to Boulder flights in May & June 2024

Find cheap flight options from Portland to Boulder specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
Check out some of the best flight deals from Portland to Boulder in 2024. For more flight deals, be sure to check back very soon.
Mon 6/312:35 amPDX - DEN
Nonstop2h 34mFrontier
Thu 6/66:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/28$95
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Tue 6/1110:10 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$96
Tue 6/117:53 amPDX - DEN
Nonstop2h 40mFrontier
Thu 6/136:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/29$97
Wed 6/57:43 amPDX - DEN
Nonstop2h 40mFrontier
Wed 6/125:06 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$98
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Mon 6/105:01 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$99
Tue 6/1112:49 amPDX - DEN
Nonstop2h 33mFrontier
Wed 6/1910:07 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$100
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Tue 6/115:06 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$101
Tue 6/1112:49 amPDX - DEN
Nonstop2h 33mFrontier
Mon 6/1710:10 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$106
Sat 6/812:59 amPDX - DEN
Nonstop2h 33mFrontier
Tue 7/95:06 amDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$107

Portland to Boulder 2024 flight deals

Discover exclusive flight deals for travel between Portland and Boulder in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Check out some of the best flight deals from Portland to Boulder in 2024. For more flight deals, be sure to check back very soon.
Mon 6/312:35 amPDX - DEN
Nonstop2h 34mFrontier
Thu 6/66:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/28$95
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Tue 6/1110:10 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$96
Tue 6/117:53 amPDX - DEN
Nonstop2h 40mFrontier
Thu 6/136:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/29$97
Wed 6/57:43 amPDX - DEN
Nonstop2h 40mFrontier
Wed 6/125:06 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$98
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Mon 6/105:01 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$99
Tue 6/1112:49 amPDX - DEN
Nonstop2h 33mFrontier
Wed 6/1910:07 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$100
Tue 8/612:49 amPDX - DEN
Nonstop2h 31mFrontier
Tue 8/139:55 pmDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/29$101
Mon 7/2212:49 amPDX - DEN
Nonstop2h 31mFrontier
Tue 7/2310:16 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$102
Tue 7/212:28 amPDX - DEN
Nonstop2h 33mFrontier
Sat 7/66:05 amDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$103

Non-stop flights to Boulder from Portland

Discover non-stop flight options from Portland to Boulder. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
For a quicker trip, book one of these direct flights from Portland to Boulder. Users can also choose from other Portland to Boulder flights by using the search form above.
Mon 6/1012:49 amPDX - DEN
Nonstop2h 33mFrontier
Sat 6/1510:12 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/30$96
Tue 6/117:53 amPDX - DEN
Nonstop2h 40mFrontier
Thu 6/136:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/29$97
Mon 7/812:49 amPDX - DEN
Nonstop2h 31mFrontier
Sat 7/206:00 amDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$98
Tue 6/1112:49 amPDX - DEN
Nonstop2h 33mFrontier
Wed 6/1910:07 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$100
Tue 8/612:49 amPDX - DEN
Nonstop2h 31mFrontier
Tue 8/139:55 pmDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/29$101
Mon 7/2212:49 amPDX - DEN
Nonstop2h 31mFrontier
Tue 7/2310:16 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$102
Tue 7/212:28 amPDX - DEN
Nonstop2h 33mFrontier
Sat 7/66:05 amDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$103
Mon 7/2212:49 amPDX - DEN
Nonstop2h 31mFrontier
Sat 7/2710:07 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$105
Mon 7/112:49 amPDX - DEN
Nonstop2h 33mFrontier
Fri 7/510:00 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$106

Portland to Boulder flights leaving soon

Find last-minute flight options from Portland to Boulder for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Have a look at some of the last-minute flights available departing from Portland to Boulder. It's wise to confirm all flight details are correct before booking.
Tue 6/48:07 amPDX - DEN
Nonstop2h 42mFrontier
Thu 6/66:05 amDEN - PDX
Nonstop2h 45mFrontier
Deal found 5/28$95
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Tue 6/1110:10 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/29$96
Fri 6/712:49 amPDX - DEN
Nonstop2h 33mFrontier
Tue 6/115:06 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$97
Wed 6/57:43 amPDX - DEN
Nonstop2h 40mFrontier
Wed 6/125:06 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$98
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Mon 6/105:01 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$99
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Tue 6/115:06 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/29$101
Sat 6/812:59 amPDX - DEN
Nonstop2h 33mFrontier
Tue 7/95:06 amDEN - PDX
Nonstop2h 43mFrontier
Deal found 5/29$107
Wed 6/512:49 amPDX - DEN
Nonstop2h 33mFrontier
Fri 6/710:00 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 5/30$108
Tue 6/412:49 amPDX - DEN
Nonstop2h 33mFrontier
Fri 6/75:01 amDEN - PDX
Nonstop2h 44mFrontier
Deal found 5/30$115

One-way flights to Boulder from Portland

Search for one-way flight options from Portland to Boulder. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
If you're seeking multiple options on one-way flights from Portland to Boulder, be sure to check out these deals, which are updated often. Users needing a return flight from Portland to Boulder should utilize the search form above.
Tue 6/412:49 amPDX - DEN
Nonstop2h 33mFrontier
Deal found 5/30$48
Sun 9/112:48 amPDX - DEN
Nonstop2h 36mFrontier
Deal found 5/30$49
Fri 7/2612:49 amPDX - DEN
Nonstop2h 31mFrontier
Deal found 5/29$53
Thu 7/412:56 amPDX - DEN
Nonstop2h 31mFrontier
Deal found 5/29$59
Sat 7/1312:40 amPDX - DEN
Nonstop2h 31mFrontier
Deal found 5/29$60
Thu 8/2212:48 amPDX - DEN
Nonstop2h 36mFrontier
Deal found 5/29$61
Sat 8/3112:48 amPDX - DEN
Nonstop2h 36mFrontier
Deal found 5/30$68
Tue 7/3012:49 amPDX - DEN
Nonstop2h 31mFrontier
Deal found 5/30$74
Mon 8/510:38 amPDX - DEN
Nonstop2h 41mFrontier
Deal found 5/29$78

Find flights from Portland to Boulder within your budget

Customize your flight search to find flights from Portland to Boulder that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$96 - $196

Route

Depart

Return

Price

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Mon 6/10

Nonstop2h 33m

Denver Intl

Sat 6/15

Nonstop2h 44m

$96

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Tue 6/11

Nonstop2h 40m

Denver Intl

Thu 6/13

Nonstop2h 45m

$97

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Mon 7/8

Nonstop2h 31m

Denver Intl

Sat 7/20

Nonstop2h 43m

$98

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Tue 6/11

Nonstop2h 33m

Denver Intl

Wed 6/19

Nonstop2h 46m

$100

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Tue 8/6

Nonstop2h 31m

Denver Intl

Tue 8/13

Nonstop2h 45m

$101

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Sat 10/19

Nonstop2h 32m

Denver Intl

Wed 10/23

Nonstop2h 45m

$143

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Wed 6/12

Nonstop2h 33m

Denver Intl

Wed 6/19

1 stop7h 44m

$149

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Wed 6/12

1 stop6h 30m

Denver Intl

Wed 6/19

Nonstop2h 42m

$168

PortlandDenver Intl

PDX - DEN

PDXDEN

Portland

Tue 8/13

1 stop4h 48m

Denver Intl

Wed 8/14

1 stop4h 52m

$196

Flights are sorted by cheapest first

Deals found on 5/30

How far ahead should I book a flight from Portland to Boulder?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Boulder. Price data was last updated on May 24, 2024.
To ensure you get the cheapest price possible for a flight from Portland to Boulder, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from Portland to Boulder?

Use this chart to determine the cheapest time to fly round-trip from Portland to Boulder. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland to Boulder flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Portland to Boulder

Have a flexible travel schedule? Discover the best time to fly to Boulder from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Boulder by month

Plan your trip to Boulder by taking into account the average temperature and rainfall totals by month.

DEN

Temperature

30.2 - 73.4 °F

Reviews of airlines servicing Boulder

Get insights into the airlines that provide service to Boulder. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boulder. Reviews last updated May 30, 2024.
See what other customers who have flown with Frontier, Delta and Alaska Airlines from Portland to Boulder have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,201 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,201 reviews
Alaska Airlines
8.1
Very good
9,201 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,457 reviews
Alaska Airlines
8.1
Very good
9,201 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,777 reviews
Alaska Airlines
8.1
Very good
9,201 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,284 reviews
Alaska Airlines
8.1
Very good
9,201 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Sun Country Air
7.2
Good
597 reviews
Alaska Airlines
8.1
Very good
9,201 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to Boulder. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Boulder?

    Most people fly from Portland (PDX) if they book a flight from Portland to Boulder. On average, Portland has 12 outbound flights to Boulder per day from 6 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

  • Can I find flights from Portland to Boulder for under $100 on Cheapflights?

    Yes, there are multiple flights from Portland to Boulder for under $100. The cheapest flight booked recently is on Frontier for just $96, but on average you can expect to pay $107.

  • Are there nonstop flights from Portland to Boulder for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from Portland to Boulder under $100. A good price for a nonstop flight from Portland to Boulder is less than $107.

  • Are there last-minute flights available from Portland to Boulder for under $100?

    There are currently 20+ open flights from Portland to Boulder within the next 7 days for less than $100.

  • What days are nonstop flights available from Portland to Boulder?

    You can find nonstop flights on the following days: Sunday, Monday, Thursday, Friday, Saturday.

  • How popular is this Portland to Boulder flight route?

    Within the past month, 206 users have taken a look at flights from Portland to Boulder.

  • How many flights depart from Portland to Boulder on average per day?

    Per day, 18 flights depart from Portland to Boulder on average.
    Early Morning (Midnight to 6am) - 11% of flight departures
    Morning (6am - Noon) - 50% of flight departures
    Afternoon (Noon - 6pm) - 22% of flight departures
    Evening (6pm - Midnight) - 17% of flight departures

  • How long is the flight from Portland to Boulder?

    Airlines like Frontier fly from Portland to Boulder in about 2h 33m. The time it takes to get you to your destination is usually consistent. Portland and Boulder are separated by a distance of 994 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from Portland to Boulder one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $48. Delta flights start at $88 while deals on American Airlines start at $107 one-way.

  • What are the most reliable airlines from Portland to Boulder?

    Consider United Airlines (91%), Alaska Airlines (91%) or Copa Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from Portland to Boulder.

  • What are the cheapest flights from Portland to Boulder?

    Looking for the cheapest flight from Portland to Boulder? While on average our users pay $738, our data indicates the cheapest price to be $63. The most popular route (Portland - Denver Intl), is priced around $119.

  • What does PDX to DEN mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Portland Airport to Denver Intl Airport flight would often be abbreviated as a PDX to DEN flight. Colorado Springs Airport (COS), Vail Eagle County Airport (EGE), Cheyenne Airport (CYS), Denver Arapahoe Co Airport (APA), Loveland Northern Colorado Airport (FNL) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Portland to Boulder that include extra baggage allowance?

    The amount of baggage you can bring on your Portland to Boulder flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portland to Boulder with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland to Boulder flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Portland to Boulder that include hotel bookings?

    Yes. In addition to deals on Portland to Boulder flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Boulder?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Boulder.

  • Can I find deals for business class flights from Portland to Boulder?

    Yes. Cheapflights offers flight deals from Portland to Boulder by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Portland to Boulder that allow pets onboard?

    Many airlines flying from Portland to Boulder offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portland to Boulder?

    Yes, you can often find last-minute deals on Portland to Boulder flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portland to Boulder flight deals updated?

    The Portland to Boulder flight deals you see on this page were last updated on 5/29.

  • What are the most popular airlines that fly from Portland to Boulder?

    When booking a flight from Portland to Boulder, you may want to consider flying on Alaska Airlines, Delta or Frontier as they are the most popular for this route.

  • What is the cheapest month to book a flight from Portland to Boulder?

    Currently, December is the cheapest month in which you can book a flight from Portland to Boulder (average of $192). Flying from Portland to Boulder in July is currently the most expensive (average of $272). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Boulder
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from Portland to Boulder

Discover the top 6 airlines that operate flights from Portland to Boulder. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$41Average$105FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$75Average$158FlexibilityNo cancel feeOn-time65%
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Alaska AirlinesCheapest$79Average$188FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$109Average$448FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$161Average$507FlexibilityNo cancel feeOn-time71%
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DeltaCheapest$191Average$281FlexibilityNo cancel feeOn-timeN/A
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Portland to Hamilton, Pembroke flights

Search flights from Portland to Boulder by cabin class

Find flights from Portland to Boulder, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Portland to Boulder

Find hourly flight availability from Portland to Boulder. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
5%of flight departuresEarly morningMidnight to 6 am
45%of flight departuresMorning6 am to noon
45%of flight departuresAfternoonNoon to 6 pm
5%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Portland to Boulder

Explore weekly flight availability from Portland to Boulder. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 30, 2024.
Sunday11daily flights
Monday13daily flights
Tuesday12daily flights
Wednesday13daily flights
Thursday13daily flights
Friday12daily flights
Saturday11daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to Boulder?

Deals for Portland to Boulder flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Portland to Boulder?

Millions of users choose and trust Cheapflights to book the best flight deals from Portland to Boulder for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Portland to Boulder with no change fees?

Yes! Cheapflights helps users easily find flights from Portland to Boulder with no change fees.

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