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Cheap flights from Missoula (MSO) to Barcelona

MSO — BCN
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Find flight deals from Missoula to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 5, 2026.

Popular in

June

Cheapest in

January

Average price

$725
Highest demand for flights based on searches. 27% potential increase in price ($412 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in February 2026
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Best time to book a flight from Missoula to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Missoula with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated February 5, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Missoula to Barcelona by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,236 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,222 reviews
United Airlines
7.4
Good
9,236 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Missoula to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Missoula to Barcelona?

    Missoula Johnson-Bell Field (MSO) is the airport you will fly out of if you book a flight from Missoula to Barcelona. You should not have trouble finding flights to Barcelona from Johnson-Bell Field; the airport handles an average of 0 outbound flights to Barcelona per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Missoula airport to Barcelona. It is only a 5.5 mi journey to Johnson-Bell Field (MSO) from Missoula’s city center.

  • What are the cheapest airlines flying from Missoula to Barcelona round-trip?

    United Airlines, at $490, was found to be the cheapest airline from Missoula to Barcelona. An alternate airline flying to your destination would be American Airlines. You may be able to fly from Missoula to Barcelona for 54% less than the average price by searching for these airlines.

  • Can I find deals for flights from Missoula to Barcelona that include hotel bookings?

    Yes. In addition to deals on Missoula to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missoula to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missoula to Barcelona.

  • Can I find deals for business class flights from Missoula to Barcelona?

    Yes. Cheapflights offers flight deals from Missoula to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Missoula to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Barcelona-El Prat flights
Kalispell to Barcelona-El Prat flights
Billings to Barcelona-El Prat flights

Top 2 airlines flying from Missoula to Barcelona

Discover the top 2 airlines that operate flights from Missoula to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$490Average$977FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$774Average$1,078FlexibilityNo cancel feeOn-time71%

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