What is the cheapest airline to fly from Portland, Maine to Barcelona round-trip?

According to our current data, United Airlines ($832), offers the cheapest pricing from Portland, Maine to Barcelona.

In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

What is the cheapest time of day to fly from PWM to BCN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Barcelona as you normally would.

What airport do you fly from for flights from Portland to Barcelona?

If you book a flight to Barcelona from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland. There are 0 flights from Portland to Barcelona per day from 1 airline.

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

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

How can I find direct flights from Portland to Barcelona?

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

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

Yes. Cheapflights offers flight deals from Portland 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.

Find Cheap Flights from Portland, ME to Barcelona

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Best time to book a flight from Portland to Barcelona

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PWM-S37

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

Peruse reviews from past customers who have flown with United Airlines from Portland to Barcelona to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.3

Good

10,388 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

United Airlines

7.3

Good

10,388 reviews

United Airlines

7.3

Good

10,388 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

What airport do you fly from for flights from Portland to Barcelona?
If you book a flight to Barcelona from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland. There are 0 flights from Portland to Barcelona per day from 1 airline.
What is the cheapest airline to fly from Portland, Maine to Barcelona round-trip?
According to our current data, United Airlines ($832), offers the cheapest pricing from Portland, Maine to Barcelona.
Can I find deals for flights from Portland to Barcelona that include hotel bookings?
Yes. In addition to deals on Portland to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Barcelona?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Barcelona.
Can I find deals for business class flights from Portland to Barcelona?
Yes. Cheapflights offers flight deals from Portland 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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Top airline flying from Portland to Barcelona

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$832	Average$1,147	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Portland to Barcelona with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Best time to book a flight from Portland to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Portland with our price prediction graph.

Reviews of airlines servicing Barcelona

Peruse reviews from past customers who have flown with United Airlines from Portland to Barcelona to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Portland to Barcelona?

What is the cheapest airline to fly from Portland, Maine to Barcelona round-trip?

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

How can I find direct flights from Portland to Barcelona?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Barcelona by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Portland to Barcelona by cabin class

Find flights from Portland to Barcelona, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portland and Barcelona flights

Browse other Portland and Barcelona flight options. Last updated on October 20, 2026.

Other flights from Portland

Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Portland to Barcelona

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Travel Smart

Cheap flights from Portland, ME (PWM) to Barcelona

Find cheap flights from Portland to Barcelona with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Best time to book a flight from Portland to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Portland with our price prediction graph.

Reviews of airlines servicing Barcelona

Peruse reviews from past customers who have flown with United Airlines from Portland to Barcelona to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Portland to Barcelona?

What is the cheapest airline to fly from Portland, Maine to Barcelona round-trip?

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

How can I find direct flights from Portland to Barcelona?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Barcelona by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Portland to Barcelona by cabin class

Find flights from Portland to Barcelona, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portland and Barcelona flights

Browse other Portland and Barcelona flight options. Last updated on October 20, 2026.

Other flights from Portland

Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Portland to Barcelona

100% Free

Book with Flexibility

Travel Smart