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Cheap flights from Montana to Barcelona from $409

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 Barcelona departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Montana to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
10:38 am - 5:55 pm
BIL
-
BCN
23h 17m
2 stops
Lufthansa Logo
8:00 am - 8:57 pm
BCN
-
BIL
20h 57m
2 stops
$841Lufthansa
Sun, Apr 26 - Wed, May 6
Lufthansa Logo
4:05 pm - 5:55 pm
BZN
-
BCN
17h 50m
2 stops
Lufthansa Logo
6:40 am - 6:23 pm
BCN
-
BZN
19h 43m
2 stops
$855Lufthansa
Wed, Sep 9 - Sat, Sep 19
United Airlines Logo
5:05 am - 8:20 am
BIL
-
BCN
19h 15m
2 stops
United Airlines Logo
3:15 pm - 1:23 pm
BCN
-
BIL
30h 08m
3 stops
$858United Airlines
Sun, Apr 26 - Mon, May 4
United Airlines Logo
7:00 am - 8:20 am
BIL
-
BCN
17h 20m
2 stops
United Airlines Logo
6:40 am - 10:45 pm
BCN
-
BIL
24h 05m
2 stops
$861United Airlines
Sun, Apr 26 - Sun, May 3
United Airlines Logo
5:05 am - 8:20 am
BIL
-
BCN
19h 15m
2 stops
United Airlines Logo
1:15 pm - 10:45 pm
BCN
-
BIL
41h 30m
2 stops
$870United Airlines
Sun, Apr 26 - Wed, May 6
American Airlines Logo
1:51 pm - 6:25 pm
BIL
-
BCN
20h 34m
2 stops
American Airlines Logo
10:45 am - 10:43 pm
BCN
-
BIL
19h 58m
1 stop
$878American Airlines
Sun, Apr 26 - Wed, May 6
American Airlines Logo
6:00 am - 7:35 am
BIL
-
BCN
17h 35m
1 stop
American Airlines Logo
10:45 am - 10:43 pm
BCN
-
BIL
19h 58m
1 stop
$881American Airlines
Sun, Apr 26 - Wed, May 6
United Airlines Logo
5:51 pm - 8:20 am
BIL
-
BCN
30h 29m
2 stops
United Airlines Logo
11:15 am - 10:45 pm
BCN
-
BIL
19h 30m
2 stops
$886United Airlines
Sat, Apr 25 - Thu, May 7
Air Canada Logo
5:51 pm - 9:20 am
BIL
-
BCN
55h 29m
2 stops
Air Canada Logo
12:15 pm - 9:38 am
BCN
-
BIL
53h 23m
2 stops
$925Air Canada
Sat, Apr 25 - Sun, May 3
Finnair Logo
1:57 pm - 8:05 pm
BZN
-
BCN
22h 08m
2 stops
Finnair Logo
10:05 am - 10:42 pm
BCN
-
BZN
20h 37m
2 stops
$931Finnair
Tue, May 19 - Fri, May 29

Lufthansa flights from Montana to Barcelona-El Prat Airport

Our best Lufthansa deals on Montana to Barcelona-El Prat Airport flight tickets
Lufthansa
Apr 26
BIL10:38 amBillings Logan Intl
23h 17m
2 stops
BCN5:55 pmBarcelona-El Prat
May 6
BCN8:00 amBarcelona-El Prat
20h 57m
2 stops
BIL8:57 pmBillings Logan Intl
$841
Lufthansa
Sep 9
BZN4:05 pmBozeman Gallatin Field
17h 50m
2 stops
BCN5:55 pmBarcelona-El Prat
Sep 19
BCN6:40 amBarcelona-El Prat
19h 43m
2 stops
BZN6:23 pmBozeman Gallatin Field
$855
Lufthansa
May 19
BZN4:18 pmBozeman Gallatin Field
22h 07m
2 stops
BCN10:25 pmBarcelona-El Prat
May 29
BCN7:55 amBarcelona-El Prat
20h 44m
2 stops
BZN8:39 pmBozeman Gallatin Field
$1,025

American Airlines flights from Montana to Barcelona-El Prat Airport

Our best American Airlines deals on Montana to Barcelona-El Prat Airport flight tickets
American Airlines
Apr 26
BIL1:51 pmBillings Logan Intl
20h 34m
2 stops
BCN6:25 pmBarcelona-El Prat
May 6
BCN10:45 amBarcelona-El Prat
19h 58m
1 stop
BIL10:43 pmBillings Logan Intl
$878
American Airlines
Apr 26
BIL6:00 amBillings Logan Intl
17h 35m
1 stop
BCN7:35 amBarcelona-El Prat
May 6
BCN10:45 amBarcelona-El Prat
19h 58m
1 stop
BIL10:43 pmBillings Logan Intl
$881
American Airlines
Sep 9
BZN3:29 pmBozeman Gallatin Field
19h 06m
2 stops
BCN6:35 pmBarcelona-El Prat
Sep 19
BCN10:45 amBarcelona-El Prat
17h 54m
1 stop
BZN8:39 pmBozeman Gallatin Field
$927

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Barcelona-El Prat Airport 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 March 28, 2026.
Use the filters below to find and compare flights from Montana to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sun 4/26

10:38 am-5:55 pm

2 stops23h 17m

Barcelona-El Prat

Wed 5/6

8:00 am-8:57 pm

2 stops20h 57m

$841
Quickest round-trip

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Wed 9/9

4:05 pm-5:55 pm

2 stops17h 50m

Barcelona-El Prat

Sat 9/19

6:40 am-6:23 pm

2 stops19h 43m

$855

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sun 4/26

5:05 am-8:20 am

2 stops19h 15m

Barcelona-El Prat

Mon 5/4

3:15 pm-1:23 pm

3 stops30h 08m

$858

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sun 4/26

7:00 am-8:20 am

2 stops17h 20m

Barcelona-El Prat

Sun 5/3

6:40 am-10:45 pm

2 stops24h 05m

$861

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sun 4/26

5:05 am-8:20 am

2 stops19h 15m

Barcelona-El Prat

Wed 5/6

1:15 pm-10:45 pm

2 stops41h 30m

$870

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sun 4/26

1:51 pm-6:25 pm

2 stops20h 34m

Barcelona-El Prat

Wed 5/6

10:45 am-10:43 pm

1 stop19h 58m

$878

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sun 4/26

6:00 am-7:35 am

1 stop17h 35m

Barcelona-El Prat

Wed 5/6

10:45 am-10:43 pm

1 stop19h 58m

$881

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sat 4/25

5:51 pm-8:20 am

2 stops30h 29m

Barcelona-El Prat

Thu 5/7

11:15 am-10:45 pm

2 stops19h 30m

$886

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sat 4/25

5:51 pm-9:20 am

2 stops55h 29m

Barcelona-El Prat

Sun 5/3

12:15 pm-9:38 am

2 stops53h 23m

$925

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Tue 5/19

1:57 pm-8:05 pm

2 stops22h 08m

Barcelona-El Prat

Fri 5/29

10:05 am-10:42 pm

2 stops20h 37m

$931

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Barcelona from

How to get the cheapest flight ticket from Montana to Barcelona-El Prat Airport

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 Barcelona-El Prat Airport flights?

You could potentially save up to 18% on your flight if you consider stops on a Montana to Barcelona-El Prat Airport flight.

Cheap Montana to Barcelona-El Prat Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Barcelona-El Prat Airport

Fastest flight time

16h 27m

Direct flights

None
The fastest flight from Montana to Barcelona-El Prat Airport takes 16h 27m
There are no direct flights from Montana to Barcelona-El Prat Airport. There are no popular flight routes from Montana to Barcelona-El Prat Airport.
Search flight deals

  • When did momondo last update prices for flights from Montana to Barcelona-El Prat Airport?

    Prices for flights from Montana to Barcelona-El Prat Airport are updated daily.

  • How many operators does momondo search for flights from Montana to Barcelona-El Prat Airport?

  • How old do you have to be to fly from Montana to Barcelona-El Prat Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Barcelona-El Prat Airport.

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The necessary travel and health documents for your Barcelona-El Prat Airport 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 Montana to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Montana to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $490Free CancellationRating
7.4
9,499 reviews
Search United Airlines flights
American AirlinesPriceFrom $735Free CancellationRating
7.1
11,520 reviews
Search American Airlines flights

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tossa de Mar
Castelldefels
Tarragona
El Prat de Llobregat
L'Hospitalet de Llobregat
Calella
Santa Susanna
Cadaques
Cambrils
Badalona
Pals
Pineda de Mar
Empuriabrava
Roses
Calella de Palafrugell
Palafrugell
Malgrat de Mar

Why use momondo?

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

Finding the right flight to Barcelona from Montana is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Barcelona quick and easy, saving you time and money.

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

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

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

Once all potential Montana to Barcelona flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Montana to Barcelona flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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