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Cheap flights from Montana to Portugal from $420

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Portugal departing on 3/15. 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
0 bags

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Find the cheapest flights from Montana to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:34 am - 9:55 pm
BZN
-
LIS
32h 21m
2 stops
United Airlines Logo
5:05 am - 9:47 am
LIS
-
BZN
35h 42m
2 stops
$517United Airlines
Fri, Apr 17 - Fri, Apr 24
United Airlines Logo
6:15 am - 8:10 am
MSO
-
LIS
18h 55m
2 stops
United Airlines Logo
11:55 am - 1:33 pm
LIS
-
MSO
55h 38m
2 stops
$518United Airlines
Wed, Mar 4 - Sun, Mar 8
Multiple Airlines Logo
1:43 pm - 11:25 pm
BZN
-
LIS
26h 42m
2 stops
Multiple Airlines Logo
6:35 am - 12:53 pm
LIS
-
BZN
37h 18m
2 stops
$528Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
United Airlines Logo
6:15 am - 2:50 pm
MSO
-
LIS
25h 35m
2 stops
United Airlines Logo
12:15 pm - 9:57 pm
LIS
-
MSO
39h 42m
2 stops
$537United Airlines
Wed, Mar 4 - Sun, Mar 8
Lufthansa Logo
4:19 pm - 8:20 am
BZN
-
LIS
33h 01m
2 stops
Lufthansa Logo
7:25 am - 11:29 am
LIS
-
BZN
35h 04m
2 stops
$566Lufthansa
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
5:58 am - 8:00 am
BZN
-
LIS
19h 02m
2 stops
Multiple Airlines Logo
5:00 am - 8:11 pm
LIS
-
BZN
22h 11m
2 stops
$592Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Lufthansa Logo
4:19 pm - 8:20 am
BZN
-
LIS
33h 01m
2 stops
Lufthansa Logo
7:25 am - 11:29 am
LIS
-
BZN
35h 04m
2 stops
$597Lufthansa
Wed, Apr 8 - Wed, Apr 15
Delta Logo
8:32 am - 11:15 am
MSO
-
LIS
19h 43m
2 stops
Delta Logo
5:35 am - 11:37 pm
LIS
-
MSO
25h 02m
2 stops
$598Delta
Mon, May 4 - Sun, May 10
Scandinavian Airlines Logo
6:30 pm - 10:45 am
BZN
-
LIS
33h 15m
2 stops
Scandinavian Airlines Logo
5:00 am - 8:11 pm
LIS
-
BZN
22h 11m
2 stops
$604Scandinavian Airlines
Wed, Apr 8 - Wed, Apr 15
Scandinavian Airlines Logo
5:58 am - 10:45 am
BZN
-
LIS
21h 47m
2 stops
Scandinavian Airlines Logo
5:00 am - 10:40 pm
LIS
-
BZN
24h 40m
2 stops
$617Scandinavian Airlines
Wed, Apr 8 - Wed, Apr 15

United Airlines flights from Montana to Portugal

Our best United Airlines deals on Montana to Portugal flight tickets
United Airlines
Apr 17
BZN6:34 amBozeman Gallatin Field
32h 21m
2 stops
LIS9:55 pmLisbon Humberto Delgado
Apr 24
LIS5:05 amLisbon Humberto Delgado
35h 42m
2 stops
BZN9:47 amBozeman Gallatin Field
$517
United Airlines
Mar 4
MSO6:15 amMissoula Johnson-Bell Field
18h 55m
2 stops
LIS8:10 amLisbon Humberto Delgado
Mar 8
LIS11:55 amLisbon Humberto Delgado
55h 38m
2 stops
MSO1:33 pmMissoula Johnson-Bell Field
$518
United Airlines
Mar 4
MSO6:15 amMissoula Johnson-Bell Field
25h 35m
2 stops
LIS2:50 pmLisbon Humberto Delgado
Mar 8
LIS12:15 pmLisbon Humberto Delgado
39h 42m
2 stops
MSO9:57 pmMissoula Johnson-Bell Field
$537

Lufthansa flights from Montana to Portugal

Our best Lufthansa deals on Montana to Portugal flight tickets
Lufthansa
Apr 8
BZN4:19 pmBozeman Gallatin Field
33h 01m
2 stops
LIS8:20 amLisbon Humberto Delgado
Apr 15
LIS7:25 amLisbon Humberto Delgado
35h 04m
2 stops
BZN11:29 amBozeman Gallatin Field
$566
Lufthansa
Apr 8
BZN4:19 pmBozeman Gallatin Field
33h 01m
2 stops
LIS8:20 amLisbon Humberto Delgado
Apr 15
LIS7:25 amLisbon Humberto Delgado
35h 04m
2 stops
BZN11:29 amBozeman Gallatin Field
$597
Lufthansa
Mar 16
BZN2:43 pmBozeman Gallatin Field
26h 07m
2 stops
LIS10:50 pmLisbon Humberto Delgado
Mar 24
LIS3:55 pmLisbon Humberto Delgado
35h 27m
2 stops
BZN9:22 pmBozeman Gallatin Field
$651

momondo 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, momondo users made 832,500 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Montana to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Fri 4/17

6:34 am-9:55 pm

2 stops32h 21m

Lisbon Humberto Delgado

Fri 4/24

5:05 am-9:47 am

2 stops35h 42m

$517

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-1:33 pm

2 stops55h 38m

$518

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Fri 4/17

1:43 pm-11:25 pm

2 stops26h 42m

Lisbon Humberto Delgado

Fri 4/24

6:35 am-12:53 pm

2 stops37h 18m

$528

MissoulaLisbon

MSO - LIS

MSOLIS

Missoula Johnson-Bell Field

Wed 3/4

6:15 am-2:50 pm

2 stops25h 35m

Lisbon Humberto Delgado

Sun 3/8

12:15 pm-9:57 pm

2 stops39h 42m

$537

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Wed 4/8

4:19 pm-8:20 am

2 stops33h 01m

Lisbon Humberto Delgado

Wed 4/15

7:25 am-11:29 am

2 stops35h 04m

$566

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Wed 4/8

5:58 am-8:00 am

2 stops19h 02m

Lisbon Humberto Delgado

Wed 4/15

5:00 am-8:11 pm

2 stops22h 11m

$592

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Wed 4/8

4:19 pm-8:20 am

2 stops33h 01m

Lisbon Humberto Delgado

Wed 4/15

7:25 am-11:29 am

2 stops35h 04m

$597

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

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Wed 4/8

6:30 pm-10:45 am

2 stops33h 15m

Lisbon Humberto Delgado

Wed 4/15

5:00 am-8:11 pm

2 stops22h 11m

$604

BozemanLisbon

BZN - LIS

BZNLIS

Bozeman Gallatin Field

Wed 4/8

5:58 am-10:45 am

2 stops21h 47m

Lisbon Humberto Delgado

Wed 4/15

5:00 am-10:40 pm

2 stops24h 40m

$617

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Montana 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

Can stopping save me money on Montana to Portugal flights?

You could potentially save up to 21% on your flight if you consider stops on a Montana to Portugal flight.

Cheap Montana to Portugal flight deals and tips

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

Fastest flight time

17h 00m

Direct flights

None
The fastest flight from Montana to Portugal takes 17h 00m
There are no direct flights from Montana to Portugal. There are no popular flight routes from Montana to Portugal.
Search flight deals

  • When did momondo last update prices for flights from Montana to Portugal?

    Prices for flights from Montana to Portugal are updated daily.

  • How many operators does momondo search for flights from Montana to Portugal?

  • How old do you have to be to fly from Montana 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 Montana to Portugal.

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

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to Portugal

Compare and see reviews for airlines that fly from Montana to Portugal with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $498Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
DeltaPriceFrom $600Free CancellationRating
7.9
8,146 reviews
Search Delta flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montana to Portugal. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo helps you find the best flight between Montana and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Montana to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.

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Find better results for your trip to Portugal

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