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Cheap flights from Montana to Barcelona from $362

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 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Multiple Airlines Logo
7:00 am - 8:00 am
BZN
-
BCN
17h 00m
2 stops
Multiple Airlines Logo
1:35 pm - 9:47 am
BCN
-
BZN
28h 12m
2 stops
$944Multiple Airlines
Tue, Sep 1 - Sat, Dec 19
United Airlines Logo
2:37 pm - 8:00 am
BZN
-
BCN
33h 23m
3 stops
United Airlines Logo
12:15 pm - 3:13 pm
BCN
-
BZN
34h 58m
2 stops
$975United Airlines
Fri, Sep 11 - Sun, Sep 20
KLM Logo
3:56 pm - 4:25 pm
BZN
-
BCN
16h 29m
2 stops
KLM Logo
1:20 pm - 10:49 pm
BCN
-
BZN
17h 29m
1 stop
$985KLM
Wed, Jul 1 - Fri, Jul 31
Multiple Airlines Logo
6:26 am - 10:10 am
BZN
-
BCN
19h 44m
1 stop
Multiple Airlines Logo
6:40 am - 11:59 pm
BCN
-
BZN
25h 19m
2 stops
$996Multiple Airlines
Tue, Sep 1 - Sat, Dec 19
United Airlines Logo
2:37 pm - 8:00 am
BZN
-
BCN
33h 23m
3 stops
United Airlines Logo
12:15 pm - 3:22 pm
BCN
-
BZN
35h 07m
3 stops
$998United Airlines
Fri, Sep 11 - Sun, Sep 20
United Airlines Logo
12:48 pm - 6:15 pm
BZN
-
BCN
21h 27m
2 stops
United Airlines Logo
11:15 am - 9:37 am
BCN
-
BZN
30h 22m
2 stops
$1,003United Airlines
Wed, Jul 1 - Fri, Jul 31
KLM Logo
3:40 pm - 11:10 am
BZN
-
BCN
35h 30m
1 stop
KLM Logo
1:20 pm - 10:24 pm
BCN
-
BZN
17h 04m
1 stop
$1,022KLM
Fri, Sep 11 - Sun, Sep 20
Air Canada Logo
7:00 am - 8:00 am
BIL
-
BCN
17h 00m
2 stops
Air Canada Logo
12:15 pm - 9:00 pm
BCN
-
BIL
40h 45m
2 stops
$1,117Air Canada
Tue, Aug 4 - Sat, Aug 15
Delta Logo
6:00 am - 10:15 am
BZN
-
BCN
20h 15m
2 stops
Delta Logo
1:20 pm - 10:49 pm
BCN
-
BZN
17h 29m
1 stop
$1,140Delta
Wed, Jul 1 - Fri, Jul 31
American Airlines Logo
6:00 am - 7:35 am
BIL
-
BCN
17h 35m
2 stops
American Airlines Logo
10:45 am - 11:13 pm
BCN
-
BIL
20h 28m
1 stop
$1,423American Airlines
Sat, Jun 6 - Thu, Jul 23

United Airlines flights from Montana to Barcelona-El Prat Airport

Our best United Airlines deals on Montana to Barcelona-El Prat Airport flight tickets
United Airlines
Sep 11
BZN2:37 pmBozeman Gallatin Field
33h 23m
3 stops
BCN8:00 amBarcelona-El Prat
Sep 20
BCN12:15 pmBarcelona-El Prat
34h 58m
2 stops
BZN3:13 pmBozeman Gallatin Field
$975
United Airlines
Sep 11
BZN2:37 pmBozeman Gallatin Field
33h 23m
3 stops
BCN8:00 amBarcelona-El Prat
Sep 20
BCN12:15 pmBarcelona-El Prat
35h 07m
3 stops
BZN3:22 pmBozeman Gallatin Field
$998
United Airlines
Jul 1
BZN12:48 pmBozeman Gallatin Field
21h 27m
2 stops
BCN6:15 pmBarcelona-El Prat
Jul 31
BCN11:15 amBarcelona-El Prat
30h 22m
2 stops
BZN9:37 amBozeman Gallatin Field
$1,003

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
Jun 6
BIL6:00 amBillings Logan Intl
17h 35m
2 stops
BCN7:35 amBarcelona-El Prat
Jul 23
BCN10:45 amBarcelona-El Prat
20h 28m
1 stop
BIL11:13 pmBillings Logan Intl
$1,423
American Airlines
Aug 4
BIL6:00 amBillings Logan Intl
19h 05m
2 stops
BCN9:05 amBarcelona-El Prat
Aug 15
BCN10:45 amBarcelona-El Prat
19h 59m
1 stop
BIL10:44 pmBillings Logan Intl
$1,489
American Airlines
Aug 4
BIL6:00 amBillings Logan Intl
19h 05m
2 stops
BCN9:05 amBarcelona-El Prat
Aug 15
BCN10:45 amBarcelona-El Prat
19h 59m
1 stop
BIL10:44 pmBillings Logan Intl
$1,506

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 May 10, 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

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Tue 9/1

7:00 am-8:00 am

2 stops17h 00m

Barcelona-El Prat

Sat 12/19

1:35 pm-9:47 am

2 stops28h 12m

$944

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Fri 9/11

2:37 pm-8:00 am

3 stops33h 23m

Barcelona-El Prat

Sun 9/20

12:15 pm-3:13 pm

2 stops34h 58m

$975
Quickest round-trip

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Wed 7/1

3:56 pm-4:25 pm

2 stops16h 29m

Barcelona-El Prat

Fri 7/31

1:20 pm-10:49 pm

1 stop17h 29m

$985

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Tue 9/1

6:26 am-10:10 am

1 stop19h 44m

Barcelona-El Prat

Sat 12/19

6:40 am-11:59 pm

2 stops25h 19m

$996

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Fri 9/11

2:37 pm-8:00 am

3 stops33h 23m

Barcelona-El Prat

Sun 9/20

12:15 pm-3:22 pm

3 stops35h 07m

$998

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Wed 7/1

12:48 pm-6:15 pm

2 stops21h 27m

Barcelona-El Prat

Fri 7/31

11:15 am-9:37 am

2 stops30h 22m

$1,003

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Fri 9/11

3:40 pm-11:10 am

1 stop35h 30m

Barcelona-El Prat

Sun 9/20

1:20 pm-10:24 pm

1 stop17h 04m

$1,022

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Tue 8/4

7:00 am-8:00 am

2 stops17h 00m

Barcelona-El Prat

Sat 8/15

12:15 pm-9:00 pm

2 stops40h 45m

$1,117

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Wed 7/1

6:00 am-10:15 am

2 stops20h 15m

Barcelona-El Prat

Fri 7/31

1:20 pm-10:49 pm

1 stop17h 29m

$1,140

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Sat 6/6

6:00 am-7:35 am

2 stops17h 35m

Barcelona-El Prat

Thu 7/23

10:45 am-11:13 pm

1 stop20h 28m

$1,423

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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

What is the cheapest month to fly to Barcelona-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from Montana is in June. 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 June, then book flights to Barcelona-El Prat Airport from Montana during November instead. Flights to Barcelona-El Prat Airport in November, while not as cheap as those in June, still average around $434.

Can stopping save me money on Montana to Barcelona-El Prat Airport flights?

You could potentially save up to 22% 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

17h 00m

Direct flights

None
The fastest flight from Montana to Barcelona-El Prat Airport takes 17h 00m
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

Frequently asked questions about flying from Montana to Barcelona-El Prat Airport

  • 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
9,694 reviews
Search United Airlines flights
American AirlinesPriceFrom $735Free CancellationRating
7.1
11,667 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
Cambrils
Badalona
Cadaques
Pineda de Mar
Santa Susanna
Empuriabrava
Pals
Roses
Palafrugell
Calella de 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.

An easier way to manage your Barcelona-El Prat Airport trip

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