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Cheap flights from Montana to Barcelona from $394

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 9/17. 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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Cheap round-trip flights

Air Canada Logo
7:00 am - 7:50 amBIL-BCN
16h 50m2 stops
Air Canada Logo
1:15 pm - 8:49 pmBCN-BIL
39h 34m2 stops
$566Air Canada
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Tue, Sep 23 - Thu, Oct 2
Delta Logo
6:10 am - 7:00 amBZN-BCN
17h 50m2 stops
Delta Logo
10:15 am - 11:58 pmBCN-BZN
21h 43m2 stops
$568Delta
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Fri, Oct 31 - Wed, Nov 12
American Airlines Logo
7:03 am - 10:10 amBIL-BCN
19h 07m1 stop
American Airlines Logo
12:20 pm - 9:49 pmBCN-BIL
17h 29m1 stop
$583American Airlines
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Tue, Sep 23 - Thu, Oct 2
United Airlines Logo
12:50 pm - 6:10 pmBZN-BCN
21h 20m2 stops
United Airlines Logo
12:10 pm - 6:59 pmBCN-BZN
38h 49m2 stops
$586United Airlines
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Wed, Oct 1 - Fri, Oct 24
American Airlines Logo
7:03 am - 10:10 amBIL-BCN
19h 07m1 stop
American Airlines Logo
10:45 am - 9:49 pmBCN-BIL
19h 04m2 stops
$587American Airlines
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Tue, Sep 23 - Thu, Oct 2
Logo
5:00 am - 7:50 amBIL-BCN
18h 50m3 stops
Logo
12:10 pm - 9:35 amBCN-BIL
29h 25m2 stops
$595
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Tue, Sep 23 - Thu, Oct 2
United Airlines Logo
12:50 pm - 6:10 pmBZN-BCN
21h 20m2 stops
United Airlines Logo
4:00 pm - 3:16 pmBCN-BZN
31h 16m1 stop
$615United Airlines
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Wed, Oct 1 - Fri, Oct 24
Logo
5:00 am - 7:50 amBIL-BCN
18h 50m3 stops
Logo
1:15 pm - 11:16 amBCN-BIL
30h 01m2 stops
$628
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Mon, Sep 15 - Fri, Sep 26
Lufthansa Logo
12:45 pm - 1:05 pmBZN-BCN
16h 20m1 stop
Lufthansa Logo
5:15 pm - 9:40 pmBCN-BZN
36h 25m2 stops
$1,505Lufthansa
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Fri, Nov 21 - Sun, Nov 30
Lufthansa Logo
12:45 pm - 1:05 pmBZN-BCN
16h 20m1 stop
Lufthansa Logo
1:55 pm - 9:40 pmBCN-BZN
39h 45m2 stops
$1,550Lufthansa
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Fri, Nov 21 - Sun, Nov 30

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
Sep 23
BIL7:03 amBillings Logan Intl
19h 07m
1 stop
BCN10:10 amBarcelona-El Prat
Oct 2
BCN12:20 pmBarcelona-El Prat
17h 29m
1 stop
BIL9:49 pmBillings Logan Intl
$583
Find similar
American Airlines
Sep 23
BIL7:03 amBillings Logan Intl
19h 07m
1 stop
BCN10:10 amBarcelona-El Prat
Oct 2
BCN10:45 amBarcelona-El Prat
19h 04m
2 stops
BIL9:49 pmBillings Logan Intl
$587
Find similar
American Airlines
Oct 1
BZN3:04 pmBozeman Gallatin Field
16h 46m
2 stops
BCN3:50 pmBarcelona-El Prat
Oct 24
BCN12:20 pmBarcelona-El Prat
31h 48m
1 stop
BZN12:08 pmBozeman Gallatin Field
$592
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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
Oct 1
BZN12:50 pmBozeman Gallatin Field
21h 20m
2 stops
BCN6:10 pmBarcelona-El Prat
Oct 24
BCN12:10 pmBarcelona-El Prat
38h 49m
2 stops
BZN6:59 pmBozeman Gallatin Field
$586
Find similar
United Airlines
Oct 1
BZN12:50 pmBozeman Gallatin Field
21h 20m
2 stops
BCN6:10 pmBarcelona-El Prat
Oct 24
BCN4:00 pmBarcelona-El Prat
31h 16m
1 stop
BZN3:16 pmBozeman Gallatin Field
$615
Find similar
United Airlines
Sep 26
BZN4:19 pmBozeman Gallatin Field
37h 41m
1 stop
BCN2:00 pmBarcelona-El Prat
Oct 7
BCN12:10 pmBarcelona-El Prat
38h 48m
2 stops
BZN6:58 pmBozeman Gallatin Field
$616
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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 August 13, 2025.
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

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Tue 9/23

7:00 am-7:50 am

2 stops16h 50m

Barcelona-El Prat

Thu 10/2

1:15 pm-8:49 pm

2 stops39h 34m

$566

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Fri 10/31

6:10 am-7:00 am

2 stops17h 50m

Barcelona-El Prat

Wed 11/12

10:15 am-11:58 pm

2 stops21h 43m

$568

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Tue 9/23

7:03 am-10:10 am

1 stop19h 07m

Barcelona-El Prat

Thu 10/2

12:20 pm-9:49 pm

1 stop17h 29m

$583

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Wed 10/1

12:50 pm-6:10 pm

2 stops21h 20m

Barcelona-El Prat

Fri 10/24

12:10 pm-6:59 pm

2 stops38h 49m

$586

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Tue 9/23

7:03 am-10:10 am

1 stop19h 07m

Barcelona-El Prat

Thu 10/2

10:45 am-9:49 pm

2 stops19h 04m

$587

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Tue 9/23

5:00 am-7:50 am

3 stops18h 50m

Barcelona-El Prat

Thu 10/2

12:10 pm-9:35 am

2 stops29h 25m

$595

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Wed 10/1

12:50 pm-6:10 pm

2 stops21h 20m

Barcelona-El Prat

Fri 10/24

4:00 pm-3:16 pm

1 stop31h 16m

$615

BillingsBarcelona

BIL - BCN

BILBCN

Billings Logan Intl

Mon 9/15

5:00 am-7:50 am

3 stops18h 50m

Barcelona-El Prat

Fri 9/26

1:15 pm-11:16 am

2 stops30h 01m

$628

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Fri 11/21

12:45 pm-1:05 pm

1 stop16h 20m

Barcelona-El Prat

Sun 11/30

5:15 pm-9:40 pm

2 stops36h 25m

$1,505

BozemanBarcelona

BZN - BCN

BZNBCN

Bozeman Gallatin Field

Fri 11/21

12:45 pm-1:05 pm

1 stop16h 20m

Barcelona-El Prat

Sun 11/30

1:55 pm-9:40 pm

2 stops39h 45m

$1,550

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 February. Flight prices, which tend to average around $568, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Barcelona-El Prat Airport from Montana during August instead. Flights to Barcelona-El Prat Airport in August, while not as cheap as those in February, still average around $739.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Monday when prices can be found for as low as $676. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,405. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from Montana in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $767 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $984 on average. Flights to Barcelona-El Prat Airport from Montana in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 13% 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

Best Price Found

$394

Fastest flight time

13h 51m

Direct flights

None
The best one-way flight to Barcelona-El Prat Airport from Montana in the past 72 hours is $394. The best round-trip flight deal from Montana to Barcelona-El Prat Airport found on momondo in the last 72 hours is $566.
The fastest flight from Montana to Barcelona-El Prat Airport takes 13h 51m
There are no direct flights from Montana to Barcelona-El Prat Airport. Popular non-direct routes for this connection are Bozeman Gallatin Field Airport - Barcelona-El Prat Airport and Billings Logan Intl Airport - Barcelona-El Prat Airport.
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  • 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 $586Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights
DeltaPriceFrom $597Free CancellationRating
8.0
7,979 reviews
Search Delta flights
American AirlinesPriceFrom $774Free CancellationRating
7.2
10,000 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
L'Hospitalet de Llobregat
Tossa de Mar
El Prat de Llobregat
Tarragona
Castelldefels
Santa Susanna
Badalona
Cambrils
Calella
Pineda de Mar
Empuriabrava
Cadaques
Roses
Malgrat de Mar
Palafrugell
Tortosa
Pals

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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