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Portugal

$413+ Cheap flights from Montana 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LIS
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheap flight deals from Montana to Portugal

Keep the following information in mind while searching for Montana to Portugal flight deals. Data was last updated July 1, 2025.

Round-trip from

$607
(American Airlines)

One-way from

$413
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,318
From Montana to Portugal
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One-way flight from Montana to Portugal
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Highest demand for flights based on searches. 24% potential increase in price ($316 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Montana to Portugal

Cheapest flights from Montana to Portugal
Explore the most affordable flight options available from Montana to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This American Airlines deal was found by Cheapflights users on 6/30. 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 10/292:05 pmMSO - LIS
2 stops21h 40mMultiple Airlines
Wed 11/58:45 pmLIS - MSO
2 stops29h 44mMultiple Airlines
Deal found 6/30$607
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Sat 11/15:10 pmMSO - LIS
2 stops58h 10mUnited Airlines
Wed 11/195:00 amLIS - MSO
2 stops23h 47mUnited Airlines
Deal found 6/29$611
This United Airlines deal was found by Cheapflights users on 7/1. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/218:00 amBZN - LIS
2 stops18h 20mUnited Airlines
Fri 10/315:00 amLIS - BZN
2 stops39h 46mUnited Airlines
Deal found 7/1$685
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 11/111:16 amBZN - LIS
2 stops18h 54mMultiple Airlines
Sat 11/154:45 pmLIS - BZN
2 stops26h 49mMultiple Airlines
Deal found 6/30$707
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 9/67:20 amBZN - LIS
2 stops18h 45mAmerican Airlines
Sat 10/411:05 amLIS - BZN
2 stops31h 49mAmerican Airlines
Deal found 6/30$1,044
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/1. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1411:30 amBZN - LIS
1 stop15h 20mTAP AIR PORTUGAL
Tue 8/1911:45 amLIS - BZN
1 stop29h 52mTAP AIR PORTUGAL
Deal found 7/1$1,354
This KLM deal was found by Cheapflights users on 6/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/183:31 pmMSO - LIS
2 stops20h 09mKLM
Sat 8/27:30 pmLIS - MSO
2 stops35h 13mKLM
Deal found 6/29$1,420

Cheapflights Fare Finder

Customize your flight search to find flights from Montana 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 July 1, 2025.
Use the filters below to find and compare flights from Montana to Portugal that are best for you.

Fly from

Montana

Fly to

Portugal

Route

Depart

Return

Price

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 10/29

2:05 pm-5:45 pm

2 stops21h 40m

Lisbon Humberto Delgado

Wed 11/5

8:45 pm-7:29 pm

2 stops29h 44m

$607

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 10/29

6:25 am-8:10 am

2 stops19h 45m

Lisbon Humberto Delgado

Wed 11/5

6:10 am-9:47 pm

3 stops22h 37m

$655

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Tue 10/21

8:00 am-9:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Fri 10/31

5:00 am-2:46 pm

2 stops39h 46m

$685

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Sat 11/1

11:16 am-12:10 pm

2 stops18h 54m

Lisbon Humberto Delgado

Sat 11/15

4:45 pm-12:34 pm

2 stops26h 49m

$707

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Sat 9/6

7:20 am-9:05 am

2 stops18h 45m

Lisbon Humberto Delgado

Sat 10/4

11:05 am-11:54 am

2 stops31h 49m

$1,044

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Thu 8/14

11:30 am-9:50 am

1 stop15h 20m

Lisbon Humberto Delgado

Tue 8/19

11:45 am-10:37 am

1 stop29h 52m

$1,354

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Sat 8/30

3:08 pm-8:20 am

3 stops34h 12m

$413

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Mon 11/17

6:25 am-10:15 am

2 stops20h 50m

$468

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Mon 11/17

2:05 pm-6:55 pm

2 stops21h 50m

$472

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Fri 12/26

4:22 pm-9:20 am

2 stops57h 58m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 12 results
1
2

Best time to book a flight from Montana to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Montana to Portugal (average of $612). Flying from Montana to Portugal in June is currently the most expensive (average of $1,130). 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.

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 July 1, 2025.
Peruse reviews from past customers who have flown with KLM, United Airlines, and American Airlines from Montana to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,366 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,858 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
TAP AIR PORTUGAL
7.1
Good
1,912 reviews
KLM
7.8
Good
1,366 reviews

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Montana 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 Montana to Portugal one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $468. However, be on the lookout for offers from KLM and TAP AIR PORTUGAL, as they are both options that can get you from Montana to Portugal for a low price.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Montana to Portugal (average of $612). Flying from Montana to Portugal in June is currently the most expensive (average of $1,130). 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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Alternative routes for Montana to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Montana to Portugal

Discover the top 2 airlines that operate flights from Montana 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$549Average$971FlexibilityNo cancel feeOn-time69%
DeltaCheapest$598Average$907FlexibilityNo cancel feeOn-timeN/A

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