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Cheap flights from Missoula to Portugal from $471

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missoula to Portugal departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missoula to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:15 am - 8:10 amMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
18h 55m2 stops Denver Intl Newark
United Airlines Logo
11:20 am - 9:26 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
41h 06m2 stops Toronto Pearson Intl Denver Intl
$755United Airlines
Sun, Dec 6 - Tue, Dec 8
British Airways Logo
4:18 pm - 5:55 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
18h 37m2 stops Seattle/Tacoma Intl London Heathrow
British Airways Logo
6:35 pm - 11:59 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
36h 24m2 stops London Heathrow Seattle/Tacoma Intl
$1,196British Airways
Sat, Dec 26 - Mon, Jan 4
Multiple Airlines Logo
1:42 pm - 5:55 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
21h 13m2 stops Chicago O'Hare Intl London Heathrow
Multiple Airlines Logo
6:35 pm - 11:59 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
36h 24m2 stops London Heathrow Seattle/Tacoma Intl
$1,216Multiple Airlines
Sat, Dec 26 - Mon, Jan 4
Multiple Airlines Logo
1:42 pm - 5:55 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
21h 13m2 stops Chicago O'Hare Intl London Heathrow
Multiple Airlines Logo
7:05 am - 11:59 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
47h 54m2 stops London Heathrow Seattle/Tacoma Intl
$1,216Multiple Airlines
Sat, Dec 26 - Mon, Jan 4
Multiple Airlines Logo
1:42 pm - 5:55 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
21h 13m2 stops Chicago O'Hare Intl London Heathrow
Multiple Airlines Logo
7:05 am - 11:59 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
47h 54m2 stops London Heathrow Seattle/Tacoma Intl
$1,231Multiple Airlines
Sat, Dec 26 - Mon, Jan 4
United Airlines Logo
6:15 am - 3:00 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
25h 45m3 stops Denver Intl Austin Bergstrom Frankfurt am Main
United Airlines Logo
10:15 am - 9:26 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
18h 11m2 stops Newark Denver Intl
$1,259United Airlines
Sun, Dec 6 - Tue, Dec 8
United Airlines Logo
6:15 am - 8:10 amMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
18h 55m2 stops Denver Intl Newark
United Airlines Logo
5:00 am - 9:47 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
23h 47m2 stops Frankfurt am Main Denver Intl
$1,302United Airlines
Tue, Nov 3 - Fri, Nov 6
KLM Logo
3:36 pm - 6:45 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
20h 09m2 stops Minneapolis St Paul Amsterdam Schiphol
KLM Logo
3:35 pm - 5:37 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
33h 02m2 stops Amsterdam Schiphol Salt Lake City
$1,329KLM
Fri, Sep 4 - Tue, Sep 8
KLM Logo
3:36 pm - 6:45 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
20h 09m2 stops Minneapolis St Paul Amsterdam Schiphol
KLM Logo
3:35 pm - 5:37 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
33h 02m2 stops Amsterdam Schiphol Salt Lake City
$1,448KLM
Fri, Sep 4 - Tue, Sep 8
Multiple Airlines Logo
1:25 pm - 11:10 pmMSO  Missoula Johnson-Bell Field-LIS Lisbon Humberto Delgado
26h 45m2 stops Dallas/Fort Worth London Heathrow
Multiple Airlines Logo
8:25 am - 12:11 pmLIS  Lisbon Humberto Delgado-MSO Missoula Johnson-Bell Field
34h 46m2 stops Madrid Barajas Dallas/Fort Worth
$1,501Multiple Airlines
Fri, Sep 4 - Tue, Sep 8

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United Airlines flights from Missoula to Portugal

Our best United Airlines deals on Missoula to Portugal flight tickets
United Airlines
Dec 6
MSO6:15 amMissoula Johnson-Bell Field
18h 55m
2 stops
LIS8:10 amLisbon Humberto Delgado
Dec 8
LIS11:20 amLisbon Humberto Delgado
41h 06m
2 stops
MSO9:26 pmMissoula Johnson-Bell Field
$755
United Airlines
Dec 6
MSO6:15 amMissoula Johnson-Bell Field
25h 45m
3 stops
LIS3:00 pmLisbon Humberto Delgado
Dec 8
LIS10:15 amLisbon Humberto Delgado
18h 11m
2 stops
MSO9:26 pmMissoula Johnson-Bell Field
$1,259
United Airlines
Nov 3
MSO6:15 amMissoula Johnson-Bell Field
18h 55m
2 stops
LIS8:10 amLisbon Humberto Delgado
Nov 6
LIS5:00 amLisbon Humberto Delgado
23h 47m
2 stops
MSO9:47 pmMissoula Johnson-Bell Field
$1,302

British Airways flights from Missoula to Portugal

Our best British Airways deals on Missoula to Portugal flight tickets
British Airways
Dec 26
MSO4:18 pmMissoula Johnson-Bell Field
18h 37m
2 stops
LIS5:55 pmLisbon Humberto Delgado
Jan 4
LIS6:35 pmLisbon Humberto Delgado
36h 24m
2 stops
MSO11:59 pmMissoula Johnson-Bell Field
$1,196
British Airways
Nov 20
MSO1:04 pmMissoula Johnson-Bell Field
21h 51m
2 stops
LIS5:55 pmLisbon Humberto Delgado
Nov 30
LIS6:35 pmLisbon Humberto Delgado
36h 24m
2 stops
MSO11:59 pmMissoula Johnson-Bell Field
$1,922

momondo 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, momondo users made 832,500 searches. Data last updated August 14, 2026.
Use the filters below to find and compare flights from Missoula to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Sun 12/6

6:15 am-8:10 am

2 stops18h 55m

Lisbon Humberto Delgado

Tue 12/8

11:20 am-9:26 pm

2 stops41h 06m

$755

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Sat 12/26

4:18 pm-5:55 pm

2 stops18h 37m

Lisbon Humberto Delgado

Mon 1/4

6:35 pm-11:59 pm

2 stops36h 24m

$1,196

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Sat 12/26

1:42 pm-5:55 pm

2 stops21h 13m

Lisbon Humberto Delgado

Mon 1/4

6:35 pm-11:59 pm

2 stops36h 24m

$1,216

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Sat 12/26

1:42 pm-5:55 pm

2 stops21h 13m

Lisbon Humberto Delgado

Mon 1/4

7:05 am-11:59 pm

2 stops47h 54m

$1,216

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Sat 12/26

1:42 pm-5:55 pm

2 stops21h 13m

Lisbon Humberto Delgado

Mon 1/4

7:05 am-11:59 pm

2 stops47h 54m

$1,231

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Sun 12/6

6:15 am-3:00 pm

3 stops25h 45m

Lisbon Humberto Delgado

Tue 12/8

10:15 am-9:26 pm

2 stops18h 11m

$1,259
Quickest round-trip

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Tue 11/3

6:15 am-8:10 am

2 stops18h 55m

Lisbon Humberto Delgado

Fri 11/6

5:00 am-9:47 pm

2 stops23h 47m

$1,302

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Fri 9/4

3:36 pm-6:45 pm

2 stops20h 09m

Lisbon Humberto Delgado

Tue 9/8

3:35 pm-5:37 pm

2 stops33h 02m

$1,329

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Fri 9/4

3:36 pm-6:45 pm

2 stops20h 09m

Lisbon Humberto Delgado

Tue 9/8

3:35 pm-5:37 pm

2 stops33h 02m

$1,448

MissoulaLisbon

MSO Missoula Johnson-Bell Field - LIS Lisbon Humberto Delgado

MSOLIS

Missoula Johnson-Bell Field

Fri 9/4

1:25 pm-11:10 pm

2 stops26h 45m

Lisbon Humberto Delgado

Tue 9/8

8:25 am-12:11 pm

2 stops34h 46m

$1,501

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Missoula to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Missoula is in August. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Portugal from Missoula during January instead. Flights to Portugal in January, while not as cheap as those in August, still average around $0.

Cheap Missoula to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missoula to Portugal

Fastest flight time

18h 55m

Direct flights

None
The fastest flight from Missoula to Portugal takes 18h 55m
There are no direct flights from Missoula to Portugal. There are no popular flight routes from Missoula to Portugal.
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Frequently asked questions about flying from Missoula to Portugal

  • When did momondo last update prices for flights from Missoula Johnson-Bell Field Airport to Portugal?

    Prices for flights from Missoula Johnson-Bell Field Airport to Portugal are refreshed on a daily basis.

  • How many operators does momondo search for flights from Missoula Johnson-Bell Field Airport to Portugal?

  • How old do you have to be to fly from Missoula Johnson-Bell Field Airport to Portugal?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missoula Johnson-Bell Field Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missoula to Portugal

Compare and see reviews for airlines that fly from Missoula to Portugal with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $511Free CancellationRating
7.4
10,114 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missoula to Portugal?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missoula to Portugal. momondo saves you time and could save you money on your trip.

Can I find flights from Missoula to Portugal with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Missoula to Portugal flights to just show those with flexible booking policies.

How can momondo help me find flights from Missoula to Portugal?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missoula to Portugal.

I’m not ready to book a flight from Missoula to Portugal right now. Can momondo alert me if prices change?

Price alerts on flights to Portugal from Missoula are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $562
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Flights to Pico Islandfrom $668
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Flights to Velasfrom $690