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$351+ Cheap flights from Idaho 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIS
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Idaho to Portugal

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) 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 December 18, 2024.

Round-trip from

$649
(KLM)

One-way from

$351
(Kiwi.com)
From Idaho to Portugal
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One-way flight from Idaho to Portugal
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Find flight deals from Idaho to Portugal

Cheapest flights from Idaho to Portugal
Explore the most affordable flight options available from Idaho to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This Delta deal was found by Cheapflights users on 12/17. 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 12/305:55 amGEG - LIS
2 stops19h 05mDelta
Fri 1/3110:00 amLIS - GEG
2 stops30h 35mDelta
Deal found 12/17$921
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Mon 12/306:25 pmGEG - LIS
2 stops54h 55mUnited Airlines
Fri 1/3111:00 amLIS - GEG
3 stops33h 48mUnited Airlines
Deal found 12/17$1,015
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Mon 12/307:00 amBOI - LIS
2 stops44h 15mUnited Airlines
Thu 1/211:55 amLIS - BOI
2 stops31h 22mUnited Airlines
Deal found 12/17$1,682
This Flightnetwork deal was found by Cheapflights users on 12/18. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:20 pmBOI - LIS
2 stops57h 00mAir Canada
Wed 1/111:00 amLIS - BOI
2 stops32h 17mAir Canada
Deal found 12/18$1,805
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:57 pmGEG - LIS
2 stops32h 08mMultiple Airlines
Fri 1/317:05 amLIS - GEG
2 stops20h 40mMultiple Airlines
Deal found 12/17$1,877
This Mytrip deal was found by Cheapflights users on 12/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/225:00 amBOI - LIS
3 stops33h 35mMultiple Airlines
Tue 12/2411:00 amLIS - BOI
2 stops41h 44mMultiple Airlines
Deal found 12/18$2,301

Find flights from Idaho to Portugal within your budget

Customize your flight search to find flights from Idaho 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 December 18, 2024.

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Depart

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Price

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Wed 3/19

1:10 pm-6:30 pm

2 stops23h 20m

Lisbon Humberto Delgado

Wed 3/26

3:25 pm-4:34 pm

2 stops31h 09m

$649

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 2/18

6:58 pm-8:55 am

2 stops54h 57m

Lisbon Humberto Delgado

Wed 3/5

7:05 am-8:29 pm

2 stops20h 24m

$669

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-11:37 pm

2 stops19h 32m

$689

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Sat 3/8

11:25 am-2:35 pm

2 stops20h 10m

Lisbon Humberto Delgado

Mon 3/17

10:00 am-12:28 am

2 stops20h 28m

$786

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Tue 5/13

12:30 pm-9:05 am

2 stops37h 35m

Lisbon Humberto Delgado

Wed 5/21

7:10 am-7:18 pm

2 stops19h 08m

$824

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Wed 2/12

8:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

Fri 2/28

11:00 am-9:29 pm

2 stops41h 29m

$827

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Wed 5/14

2:40 pm-8:35 pm

2 stops21h 55m

Lisbon Humberto Delgado

Thu 5/22

12:10 pm-3:16 pm

2 stops59h 06m

$905

JacksonLisbon

JAC - LIS

JACLIS

Jackson Hole

Wed 3/19

12:45 pm-9:20 am

3 stops38h 35m

Lisbon Humberto Delgado

Wed 3/26

5:00 am-9:04 pm

2 stops22h 04m

$916

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Mon 12/30

5:55 am-9:00 am

2 stops19h 05m

Lisbon Humberto Delgado

Fri 1/31

10:00 am-8:35 am

2 stops30h 35m

$921

SpokaneLisbon

GEG - LIS

GEGLIS

Spokane

Fri 1/31

5:10 am-8:10 am

2 stops19h 00m

Lisbon Humberto Delgado

Fri 2/7

11:00 am-11:30 pm

2 stops44h 30m

$927

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 32 results
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Best time to book a flight from Idaho to Portugal

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

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to Portugal (average of $612). Flying from Idaho to Portugal in June is currently the most expensive (average of $1,180). 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 ID to PT?

Find hourly flight availability from Idaho 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 December 18, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho 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 December 18, 2024.
To help decide which airline to fly from Idaho to Portugal, see what other customers have to say about Delta, United Airlines and Icelandair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,504 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
9,055 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,309 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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 Idaho to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $486. Users have also found prices from $494 and $580 on Air France and Air Canada, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Idaho to Portugal (average of $612). Flying from Idaho to Portugal in June is currently the most expensive (average of $1,180). 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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Alternative routes for Idaho to Portugal

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Top 5 airlines flying from Idaho to Portugal

Discover the top 5 airlines that operate flights from Idaho 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$690Average$1,352FlexibilityNo cancel feeOn-time71%
DeltaCheapest$699Average$1,122FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$709Average$1,174FlexibilityNo cancel feeOn-time69%
KLMCheapest$814Average$989FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$845Average$1,000FlexibilityNo cancel feeOn-time77%
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