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Portugal

$447+ Cheap flights from Missoula (MSO) 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.
MSO — LIS
Nov 23 — Nov 301
Sun 11/23
Sun 11/30
1 adult, Economy
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Find flight deals from Missoula to Portugal

Cheapest flights from Missoula to Portugal
Explore the most affordable flight options available from Missoula to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2025.

This United Airlines deal was found by Cheapflights users on 10/22. 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.
Wed 11/126:20 amMSO - LIS
2 stops18h 50mUnited Airlines
Wed 11/195:00 amLIS - MSO
2 stops23h 47mUnited Airlines
Deal found 10/22$554
This American Airlines deal was found by Cheapflights users on 10/22. 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 10/291:31 pmMSO - LIS
2 stops22h 09mMultiple Airlines
Sat 11/810:45 amLIS - MSO
2 stops32h 34mMultiple Airlines
Deal found 10/22$624
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:25 amMSO - LIS
2 stops19h 35mDelta
Sun 11/1612:20 pmLIS - MSO
2 stops42h 59mDelta
Deal found 10/23$676
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Wed 11/126:20 amMSO - LIS
2 stops18h 50mUnited Airlines
Sun 11/1611:55 amLIS - MSO
2 stops32h 38mUnited Airlines
Deal found 10/24$717
This United Airlines deal was found by Cheapflights users on 10/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:20 amMSO - LIS
2 stops45h 55mUnited Airlines
Sat 11/86:10 amLIS - MSO
2 stops40h 51mUnited Airlines
Deal found 10/23$718
This Air France deal was found by Cheapflights users on 10/21. 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.
Wed 11/128:00 amMSO - LIS
2 stops17h 00mAir France
Sun 11/164:10 pmLIS - MSO
2 stops32h 24mAir France
Deal found 10/21$728
This United Airlines deal was found by Cheapflights users on 10/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:20 amMSO - LIS
2 stops18h 50mUnited Airlines
Tue 12/212:20 pmLIS - MSO
2 stops39h 58mUnited Airlines
Deal found 10/23$821
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 11/206:20 amMSO - LIS
2 stops18h 50mUnited Airlines
Thu 11/2710:55 amLIS - MSO
2 stops33h 38mUnited Airlines
Deal found 10/21$920
This Air France deal was found by Cheapflights users on 10/23. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:00 amMSO - LIS
2 stops20h 00mMultiple Airlines
Tue 12/303:30 pmLIS - MSO
2 stops36h 10mMultiple Airlines
Deal found 10/23$1,075
This Expedia deal was found by Cheapflights users on 10/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:02 amMSO - LIS
2 stops45h 08mMultiple Airlines
Sun 11/306:55 pmLIS - MSO
2 stops35h 55mMultiple Airlines
Deal found 10/23$1,342
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/127:01 amMSO - LIS
2 stops18h 54mMultiple Airlines
Wed 11/198:20 amLIS - MSO
3 stops22h 23mMultiple Airlines
Deal found 10/22$2,613

Cheap flight deals from Missoula to Portugal

Keep the following information in mind while searching for Missoula to Portugal flight deals. Data was last updated October 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$549
(United Airlines)

One-way from

$447
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$799
Provider with most accurate pricing for Missoula Johnson-Bell Field-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Lisbon Humberto Delgado flights.
Search Deals
From Missoula Johnson-Bell Field to Portugal
Search Deals
One-way flight from Missoula Johnson-Bell Field to Portugal
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($100 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula 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 October 24, 2025.
Use the filters below to find and compare flights from Missoula to Portugal that are best for you.

Fly from

Missoula

Fly to

Portugal

Route

Depart

Return

Price

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Mon 2/23

6:15 am-10:15 am

2 stops21h 00m

Lisbon Humberto Delgado

Fri 3/6

5:00 am-9:29 pm

2 stops23h 29m

$549

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 11/12

6:20 am-8:10 am

2 stops18h 50m

Lisbon Humberto Delgado

Wed 11/19

5:00 am-9:47 pm

2 stops23h 47m

$554

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Thu 2/5

6:00 am-8:10 am

2 stops19h 10m

Lisbon Humberto Delgado

Thu 4/16

5:05 am-9:26 pm

2 stops23h 21m

$589

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 3/4

6:15 am-9:20 am

2 stops20h 05m

Lisbon Humberto Delgado

Thu 4/16

5:05 am-9:26 pm

2 stops23h 21m

$603

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 2/4

2:37 pm-1:20 pm

3 stops39h 43m

Lisbon Humberto Delgado

Thu 4/16

7:30 am-9:26 pm

2 stops20h 56m

$608

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Thu 2/5

2:37 pm-1:20 pm

3 stops39h 43m

Lisbon Humberto Delgado

Thu 4/16

5:05 am-9:26 pm

2 stops23h 21m

$608

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Sat 3/28

2:27 pm-10:10 am

2 stops37h 43m

Lisbon Humberto Delgado

Wed 4/15

12:50 pm-4:10 pm

2 stops34h 20m

$653

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 11/12

5:25 am-8:00 am

2 stops19h 35m

Lisbon Humberto Delgado

Sun 11/16

12:20 pm-12:19 am

2 stops42h 59m

$676

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 11/12

6:20 am-8:10 am

2 stops18h 50m

Lisbon Humberto Delgado

Sun 11/16

11:55 am-1:33 pm

2 stops32h 38m

$717

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 11/12

8:00 am-8:00 am

2 stops17h 00m

Lisbon Humberto Delgado

Sun 11/16

4:10 pm-5:34 pm

2 stops32h 24m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 11 results
1
2

Best time to book a flight from Missoula to Portugal

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

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

Currently, November is the cheapest month in which you can book a flight from Missoula to Portugal (average of $551). Flying from Missoula to Portugal in August is currently the most expensive (average of $1,263). 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 October 24, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Missoula to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,982 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,982 reviews
Delta
7.9
Good
7,982 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,995 reviews
Delta
7.9
Good
7,982 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

    For a flight from Missoula to Portugal, you will be flying from Johnson-Bell Field. Missoula Johnson-Bell Field (MSO) is just 5.5 mi from the center of the city.

  • How long is the flight from Missoula to Portugal?

    Airlines like United Airlines fly from Missoula to Portugal in about 18h 50m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4926 mi.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Missoula to Portugal (average of $551). Flying from Missoula to Portugal in August is currently the most expensive (average of $1,263). 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 2 airlines flying from Missoula to Portugal

Discover the top 2 airlines that operate flights from Missoula 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 October 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$551Average$712FlexibilityNo cancel feeOn-time69%
DeltaCheapest$618Average$799FlexibilityNo cancel feeOn-timeN/A

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