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$551+ Cheap flights from Boise (BOI) to Portugal

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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
Jan 7 — Jan 141
Tue 1/7
Tue 1/14
1 adult, Economy
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Cheap flight deals from Boise to Portugal

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Portugal (PT0). 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 January 2, 2025.

Round-trip from

$637
(Finnair)

One-way from

$551
(United)
From Boise Air Term. Gowen Fld to Portugal
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One-way flight from Boise Air Term. Gowen Fld to Portugal
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Find flight deals from Boise to Portugal

Cheapest flights from Boise to Portugal
Explore the most affordable flight options available from Boise to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2025.

This Finnair deal was found by Cheapflights users on 1/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/187:05 amBOI - LIS
2 stops31h 40mFinnair
Tue 2/256:30 amLIS - BOI
2 stops22h 20mFinnair
Deal found 1/1$637
This American Airlines deal was found by Cheapflights users on 1/1. 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.
Wed 2/267:05 amBOI - LIS
2 stops18h 50mAmerican Airlines
Fri 3/711:05 amLIS - BOI
2 stops19h 33mAmerican Airlines
Deal found 1/1$650
This Air France deal was found by Cheapflights users on 1/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1611:25 amBOI - LIS
2 stops16h 55mAir France
Sun 2/236:30 pmLIS - BOI
2 stops28h 46mAir France
Deal found 1/2$716
This Scandinavian Airlines deal was found by Cheapflights users on 1/2. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2712:30 pmBOI - LIS
2 stops25h 05mScandinavian Airlines
Wed 5/217:10 amLIS - BOI
2 stops19h 08mScandinavian Airlines
Deal found 1/2$722
This United deal was found by Cheapflights users on 1/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/62:30 pmBOI - LIS
2 stops17h 35mUnited Airlines
Fri 3/215:00 amLIS - BOI
2 stops23h 00mUnited Airlines
Deal found 1/1$892
This Delta deal was found by Cheapflights users on 1/1. 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 4/145:40 amBOI - LIS
2 stops19h 20mDelta
Mon 4/215:40 amLIS - BOI
2 stops22h 18mDelta
Deal found 1/1$937
This Air Canada deal was found by Cheapflights users on 1/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/207:21 amBOI - LIS
2 stops18h 59mMultiple Airlines
Tue 1/2811:00 amLIS - BOI
3 stops32h 20mMultiple Airlines
Deal found 1/1$954

Find flights from Boise to Portugal within your budget

Customize your flight search to find flights from Boise to Portugal 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 January 2, 2025.

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Depart

Return

Price

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 2/18

7:05 am-9:45 pm

2 stops31h 40m

Lisbon Humberto Delgado

Tue 2/25

6:30 am-9:50 pm

2 stops22h 20m

$637

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 2/26

7:05 am-8:55 am

2 stops18h 50m

Lisbon Humberto Delgado

Fri 3/7

11:05 am-11:38 pm

2 stops19h 33m

$650

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sun 2/16

11:25 am-11:20 am

2 stops16h 55m

Lisbon Humberto Delgado

Sun 2/23

6:30 pm-4:16 pm

2 stops28h 46m

$716

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sun 4/27

12:30 pm-8:35 pm

2 stops25h 05m

Lisbon Humberto Delgado

Wed 5/21

7:10 am-7:18 pm

2 stops19h 08m

$722

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Thu 3/6

2:30 pm-3:05 pm

2 stops17h 35m

Lisbon Humberto Delgado

Fri 3/21

5:00 am-10:00 pm

2 stops23h 00m

$892

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 4/14

5:40 am-8:00 am

2 stops19h 20m

Lisbon Humberto Delgado

Mon 4/21

5:40 am-8:58 pm

2 stops22h 18m

$937

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Mon 1/20

7:21 am-9:20 am

2 stops18h 59m

Lisbon Humberto Delgado

Tue 1/28

11:00 am-12:20 pm

3 stops32h 20m

$954

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 3/14

5:25 pm-9:20 am

2 stops57h 55m

$551

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 3/14

7:10 pm-9:20 am

2 stops32h 10m

$594

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 5/28

9:30 pm-9:20 pm

2 stops16h 50m

$1,724

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 11 results
1
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Best time to book a flight from Boise to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Boise 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.

Travel insights for flights from Boise to Portugal

Get recent, data-driven insights about flights from Boise to Portugal including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Boise to Portugal?

Currently, January is the cheapest month in which you can book a flight from Boise to Portugal (average of $612). Flying from Boise to Portugal in June is currently the most expensive (average of $1,249). 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 BOI to PT?

Find hourly flight availability from Boise to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 2, 2025.

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

Rainfall in Portugal by month

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

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

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

If weather is an important factor for your trip to Portugal, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated January 2, 2025.
Delta
8.0
Very good
8,536 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,536 reviews
Delta
8.0
Very good
8,536 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,282 reviews
Delta
8.0
Very good
8,536 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,496 reviews
Delta
8.0
Very good
8,536 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,969 reviews
Delta
8.0
Very good
8,536 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines
7.3
Good
1,304 reviews
Delta
8.0
Very good
8,536 reviews

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Boise to Portugal. 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 Boise to Portugal?

    If you book a flight to Portugal from Boise, you will be flying from Air Term. Gowen Fld, which is the city’s only airport. Boise Air Term. Gowen Fld (BOI) is located 3.3 mi from the center of Boise.

  • What are the cheapest airlines to fly from Boise to Portugal one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $551. Users have also found prices from $594 and $1,724 on Air Canada and Icelandair, respectively.

  • Can I find deals for flights from Boise to Portugal that include hotel bookings?

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

  • How can I find direct flights from Boise to Portugal?

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

  • Can I find deals for business class flights from Boise to Portugal?

    Yes. Cheapflights offers flight deals from Boise to Portugal 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 Boise to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Boise to Portugal (average of $612). Flying from Boise to Portugal in June is currently the most expensive (average of $1,249). 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

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Top 4 airlines flying from Boise to Portugal

Discover the top 4 airlines that operate flights from Boise to Portugal. 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 January 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$613Average$1,352FlexibilityNo cancel feeOn-time71%
DeltaCheapest$699Average$1,113FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$709Average$1,164FlexibilityNo cancel feeOn-time69%
KLMCheapest$814Average$1,038FlexibilityNo cancel feeOn-time75%
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