HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$468+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — LIS
6月 21 — 6月 281
週六 6/21
週六 6/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montana to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 6月 16, 2025.

Round-trip from

$741
(United Airlines)

One-way from

$468
(United Airlines)

Popular in

July

Cheapest in

November

Average price

$1,308
From Montana to Portugal
Search Deals
One-way flight from Montana to Portugal
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($316 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 6月 16, 2025.

This United Airlines deal was found by Cheapflights users on 6/15. 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.
週三 10/18:00 amBZN - LIS
2 stops18h 20mUnited Airlines
週五 10/2411:25 amLIS - BZN
2 stops38h 33mUnited Airlines
Deal found 6/15$741
This United Airlines deal was found by Cheapflights users on 6/16. 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.
週二 12/166:15 amMSO - LIS
2 stops20h 05mUnited Airlines
週二 12/305:00 amLIS - MSO
2 stops42h 10mUnited Airlines
Deal found 6/16$764
This American Airlines deal was found by Cheapflights users on 6/14. 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.
週六 9/67:20 amBZN - LIS
2 stops18h 45mAmerican Airlines
週六 10/411:05 amLIS - BZN
2 stops31h 49mAmerican Airlines
Deal found 6/14$1,095
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 9/16:45 amMSO - LIS
1 stop18h 20mMultiple Airlines
週一 9/81:25 pmLIS - MSO
1 stop16h 53mMultiple Airlines
Deal found 6/15$1,224
This Lufthansa deal was found by Cheapflights users on 6/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 10/111:05 amBZN - LIS
1 stop14h 15mMultiple Airlines
週五 10/246:15 amLIS - BZN
2 stops19h 43mMultiple Airlines
Deal found 6/16$1,245
This Ovago deal was found by Cheapflights users on 6/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週六 7/512:25 pmBZN - LIS
1 stop14h 50mTAP AIR PORTUGAL
週六 7/125:35 pmLIS - BZN
1 stop24h 02mTAP AIR PORTUGAL
Deal found 6/16$3,112
This Orbitz deal was found by Cheapflights users on 6/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週六 7/511:16 amBZN - LIS
2 stops23h 49mBritish Airways
週六 7/126:55 pmLIS - BZN
2 stops30h 36mBritish Airways
Deal found 6/16$4,014

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 6月 16, 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

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

週三 10/1

8:00 am-9:20 am

2 stops18h 20m

Lisbon Humberto Delgado

週五 10/24

11:25 am-6:58 pm

2 stops38h 33m

$741

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

週三 7/30

6:15 am-9:20 am

2 stops20h 05m

Lisbon Humberto Delgado

週三 8/6

12:15 pm-9:23 pm

2 stops40h 08m

$793

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

週六 9/6

7:20 am-9:05 am

2 stops18h 45m

Lisbon Humberto Delgado

週六 10/4

11:05 am-11:54 am

2 stops31h 49m

$1,095

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

週一 9/1

6:45 am-8:05 am

1 stop18h 20m

Lisbon Humberto Delgado

週一 9/8

1:25 pm-11:18 pm

1 stop16h 53m

$1,224

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

週三 10/1

11:05 am-8:20 am

1 stop14h 15m

Lisbon Humberto Delgado

週五 10/24

6:15 am-6:58 pm

2 stops19h 43m

$1,245

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

週六 7/5

12:25 pm-10:15 am

1 stop14h 50m

Lisbon Humberto Delgado

週六 7/12

5:35 pm-10:37 am

1 stop24h 02m

$3,112

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

週六 7/5

11:16 am-6:05 pm

2 stops23h 49m

Lisbon Humberto Delgado

週六 7/12

6:55 pm-6:31 pm

2 stops30h 36m

$4,014

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

週一 11/17

6:25 am-10:15 am

2 stops20h 50m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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 $1,135). 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.

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 6月 16, 2025.
United Airlines
7.4
Good
8,801 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,801 reviews
United Airlines
7.4
Good
8,801 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,801 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
TAP AIR PORTUGAL
7.1
Good
1,892 reviews
United Airlines
7.4
Good
8,801 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.6
Okay
7,019 reviews
United Airlines
7.4
Good
8,801 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 $1,135). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montana to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Charles de Gaulle flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to Athens flights
Newark to Leonardo da Vinci/Fiumicino flights
Newark to Orly flights
John F Kennedy Intl to Istanbul flights
Newark to Athens flights
John F Kennedy Intl to Lisbon flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to Barcelona-El Prat flights
Boston to Heathrow flights
John F Kennedy Intl to Orly flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
LaGuardia to Charles de Gaulle flights
Newark to Lisbon flights
Newark to Barcelona-El Prat flights
Newark to Gatwick flights
Miami to Madrid flights
Dallas/Fort Worth to Heathrow flights
San Francisco to Heathrow flights
John F Kennedy Intl to Madrid flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
Newark to Dublin flights
Seattle to Heathrow flights
O'Hare Intl to Charles de Gaulle flights
Dulles Intl to Charles de Gaulle flights
John F Kennedy Intl to Malpensa flights
John F Kennedy Intl to Dublin flights
Newark to Madrid flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
Boston to Charles de Gaulle flights
Boston to Gatwick flights
Newark to Malpensa flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
Boston to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Frederic Chopin flights
John F Kennedy Intl to Frankfurt flights
John F Kennedy Intl to Vicenza flights
LaGuardia to Gatwick flights
Miami to Leonardo da Vinci/Fiumicino flights
Boston to Lisbon flights

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 6月 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$549Average$1,009FlexibilityNo cancel feeOn-time69%
DeltaCheapest$598Average$907FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.