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Portugal

$420+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — LIS
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap 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 February 4, 2026.

This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:15 am
MSO
-
LIS
2 stops18h 55m
United Airlines
Sun 3/811:55 am
LIS
-
MSO
2 stops55h 38m
United Airlines
Deal found 2/2$518
This Delta deal was found by Cheapflights users on 2/3. 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 5/48:32 am
MSO
-
LIS
2 stops19h 43m
Delta
Sun 5/105:35 am
LIS
-
MSO
2 stops25h 02m
Delta
Deal found 2/3$598
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 10/104:19 pm
MSO
-
LIS
2 stops35h 11m
United Airlines
Sat 10/241:00 pm
LIS
-
MSO
2 stops58h 10m
United Airlines
Deal found 2/1$729
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 10/95:32 pm
MSO
-
LIS
2 stops58h 28m
United Airlines
Sat 10/241:00 pm
LIS
-
MSO
2 stops34h 10m
United Airlines
Deal found 2/1$749
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Fri 9/46:35 am
MSO
-
LIS
2 stops19h 30m
Multiple Airlines
Tue 9/87:10 am
LIS
-
MSO
2 stops23h 18m
Multiple Airlines
Deal found 2/3$839
This Ovago deal was found by Cheapflights users on 2/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:40 am
MSO
-
LIS
2 stops22h 05m
Scandinavian Airlines
Sun 10/1110:00 am
LIS
-
MSO
2 stops21h 31m
Scandinavian Airlines
Deal found 2/1$892
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:27 pm
MSO
-
LIS
2 stops58h 33m
United Airlines
Wed 6/311:25 am
LIS
-
MSO
2 stops41h 01m
United Airlines
Deal found 2/2$911
This United Airlines deal was found by Cheapflights users on 2/4. 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 6/104:19 pm
MSO
-
LIS
2 stops35h 41m
United Airlines
Tue 6/305:05 am
LIS
-
MSO
2 stops24h 25m
United Airlines
Deal found 2/4$929

Find flight deals from Missoula to Portugal

Keep the following information in mind while searching for Missoula to Portugal flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$518
(United Airlines)

One-way from

$420
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$646
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. 9% potential increase in price ($107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($98 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 4, 2026.
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

Wed 3/4

6:15 am-8:10 am

2 stops18h 55m

Lisbon Humberto Delgado

Sun 3/8

11:55 am-4:08 pm

2 stops58h 13m

$518

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Mon 5/4

8:32 am-11:15 am

2 stops19h 43m

Lisbon Humberto Delgado

Sun 5/10

5:35 am-11:37 pm

2 stops25h 02m

$598

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 6/10

4:19 pm-11:00 am

2 stops35h 41m

Lisbon Humberto Delgado

Tue 6/30

5:05 am-10:30 pm

2 stops24h 25m

$929

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Mon 6/8

6:15 am-9:20 am

2 stops20h 05m

Lisbon Humberto Delgado

Sat 6/20

5:05 am-10:30 pm

2 stops24h 25m

$1,017

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Sun 3/15

5:16 pm-11:30 pm

2 stops48h 14m

$420

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Sun 3/15

6:23 am-10:35 pm

3 stops58h 12m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

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 February 4, 2026.
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
8,144 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,144 reviews
Delta
7.9
Good
8,144 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,236 reviews
Delta
7.9
Good
8,144 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 and Delta fly from Missoula to Portugal in about 18h 55m. The time it takes to get you to your destination can typically vary by up to 48m. Airlines will cover a distance of 4926 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$511Average$706FlexibilityNo cancel feeOn-time69%
DeltaCheapest$600Average$943FlexibilityNo cancel feeOn-timeN/A

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