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Key Largo

$120+ Cheap flights from Portland (PDX) to Key Largo, FL

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MIA
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Key Largo are usually found in January or February, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to Key Largo

Keep the following information in mind while searching for Portland to Key Largo flight deals. Data was last updated March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$239
(American Airlines)

One-way from

$120
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$509
Provider with most accurate pricing for Portland-Miami flight deals.
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Provider most trusted by Cheapflights users for Portland-Miami flights.
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From Portland to Key Largo
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One-way flight from Portland to Key Largo
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Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Portland to Key Largo

Cheapest flights from Portland to Key Largo
Explore the most affordable flight options available from Portland to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1910:24 pmPDX - MIA
Nonstop5h 37mAmerican Airlines
Thu 5/297:40 pmMIA - PDX
Nonstop6h 27mAmerican Airlines
Deal found 3/23$239
This Cheapflightsfares deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/76:50 pmPDX - MIA
1 stop8h 25mSpirit Airlines
Fri 4/117:22 amMIA - PDX
1 stop13h 43mSpirit Airlines
Deal found 3/23$250
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/157:01 pmPDX - MIA
1 stop8h 16mMultiple Airlines
Tue 4/226:00 amMIA - PDX
1 stop21h 42mMultiple Airlines
Deal found 3/24$253
This Alaska Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1510:06 amPDX - MIA
Nonstop5h 53mAlaska Airlines
Sun 4/207:59 pmMIA - PDX
Nonstop6h 45mAlaska Airlines
Deal found 3/23$258
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1412:59 amPDX - MIA
1 stop9h 53mDelta
Tue 4/228:50 amMIA - PDX
1 stop10h 03mDelta
Deal found 3/24$259
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:30 pmPDX - MIA
2 stops12h 54mUnited Airlines
Sat 4/264:57 pmMIA - PDX
1 stop9h 17mUnited Airlines
Deal found 3/24$264
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/46:40 amPDX - MIA
1 stop19h 41mFrontier
Sun 4/136:30 amMIA - PDX
1 stop21h 07mFrontier
Deal found 3/24$300
This Hawaiian Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:08 amPDX - MIA
1 stop8h 54mHawaiian Airlines
Sun 4/207:59 pmMIA - PDX
Nonstop6h 45mHawaiian Airlines
Deal found 3/24$309
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/109:15 pmPDX - MIA
1 stop10h 55mSouthwest
Mon 6/164:15 pmMIA - PDX
2 stops10h 50mSouthwest
Deal found 3/24$374

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Key Largo 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 2,558,603 searches. Data last updated March 25, 2025.
Use the filters below to find and compare flights from Portland to Key Largo that are best for you.

Fly from

Portland

Fly to

Key Largo

Route

Depart

Return

Price

PortlandMiami

PDX - MIA

PDXMIA

Portland

Mon 5/19

10:24 pm-7:01 am

Nonstop5h 37m

Miami

Fri 5/23

7:40 pm-11:07 pm

Nonstop6h 27m

$239

PortlandMiami

PDX - MIA

PDXMIA

Portland

Mon 4/7

6:50 pm-6:15 am

1 stop8h 25m

Miami

Fri 4/11

7:22 am-6:05 pm

1 stop13h 43m

$250

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 4/15

7:01 pm-6:17 am

1 stop8h 16m

Miami

Sun 4/20

6:30 am-12:37 am

1 stop21h 07m

$253

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 4/15

10:06 am-6:59 pm

Nonstop5h 53m

Miami

Sun 4/20

7:59 pm-11:44 pm

Nonstop6h 45m

$258

PortlandMiami

PDX - MIA

PDXMIA

Portland

Mon 4/14

12:59 am-1:52 pm

1 stop9h 53m

Miami

Tue 4/22

8:50 am-3:53 pm

1 stop10h 03m

$259

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 4/22

7:30 pm-11:24 am

2 stops12h 54m

Miami

Sat 4/26

4:57 pm-11:14 pm

1 stop9h 17m

$264

PortlandMiami

PDX - MIA

PDXMIA

Portland

Fri 4/4

6:40 am-5:21 am

1 stop19h 41m

Miami

Thu 4/10

6:25 am-12:37 am

1 stop21h 12m

$300

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 4/16

5:08 am-5:02 pm

1 stop8h 54m

Miami

Sun 4/20

7:59 pm-11:44 pm

Nonstop6h 45m

$309

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 6/10

9:15 pm-11:10 am

1 stop10h 55m

Miami

Mon 6/16

4:15 pm-12:05 am

2 stops10h 50m

$374

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 4/23

10:34 pm-7:17 am

Nonstop5h 43m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 18 results
1
2

Best time to book a flight from Portland to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Key Largo

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Key Largo. Price data was last updated on March 21, 2025.

To ensure you get the cheapest price possible for a flight from Portland to Key Largo, you should look to book at least 71 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.

What is the cheapest month to book a flight from Portland to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Portland to Key Largo (average of $229). Flying from Portland to Key Largo in March is currently the most expensive (average of $289). 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.

What is the cheapest time of day to fly from PDX to KE9?

Find hourly flight availability from Portland to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

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

What is the cheapest day to fly from Portland to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Portland to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Key Largo flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland to Key Largo

Explore weekly flight availability from Portland to Key Largo. 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 March 25, 2025.

The most flights from PDX to KE9 are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated March 25, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Portland to Key Largo have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,785 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,785 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,330 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Portland to Key Largo. 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 Key Largo?

    For a flight from Portland to Key Largo, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 3 outbound flights to Key Largo per day. 8 airlines have flights to Key Largo from Portland on a regular basis.

  • How popular is this Portland to Key Largo flight route?

    Flights from Portland to Key Largo have been viewed 12 times in the past calendar month.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $120. Users have also found prices from $122 and $130 on Spirit Airlines and Delta, respectively.

  • What are the most reliable airlines from Portland to Key Largo?

    No one likes to see their flight delayed. When booking a flight from Portland to Key Largo consider choosing American Airlines (93%), Qatar Airways (85%) or Alaska Airlines (82%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portland to Key Largo?

    The cheapest flight price from Portland to Key Largo is $148. On average you can expect to pay $781. The most popular route, (Portland - Miami), can usually be booked for $222.

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

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

  • How can I find direct flights from Portland to Key Largo?

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Portland to Key Largo (average of $229). Flying from Portland to Key Largo in March is currently the most expensive (average of $289). 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.

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Top 8 airlines flying from Portland to Key Largo

Discover the top 8 airlines that operate flights from Portland to Key Largo. 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 2,558,603 searches. Data last updated March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$140Average$262FlexibilityNo cancel feeOn-time65%
FrontierCheapest$140Average$210FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$158Average$278FlexibilityNo cancel feeOn-time85%
DeltaCheapest$175Average$369FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$199Average$461FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$229Average$473FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$229Average$421FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$243Average$483FlexibilityNo cancel feeOn-time71%
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