HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Europe

$418+ Cheap flights from Portland, ME (PWM) to Southeast Europe

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — ATH
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Southeast Europe with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Southeast Europe

Keep the following information in mind while searching for Portland to Southeast Europe flight deals. Data was last updated January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$508
(United Airlines)

One-way from

$418
(American Airlines)

Popular in

January

Cheapest in

February

Average price

$6,764
Provider with most accurate pricing for Portland-Athens Eleftherios V. flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Athens Eleftherios V. flights.
Search Deals
From Portland to Southeast Europe
Search Deals
One-way flight from Portland to Southeast Europe
Search Deals
Highest demand for flights based on searches. 45% potential increase in price ($1,215 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 48% potential price decrease ($482 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Portland to Southeast Europe

Cheapest flights from Portland to Southeast Europe
Explore the most affordable flight options available from Portland to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:45 amPWM - ATH
2 stops36h 55mUnited Airlines
Sat 2/286:30 amATH - PWM
2 stops38h 53mUnited Airlines
Deal found 1/7$508
This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/202:10 pmPWM - ATH
2 stops27h 15mUnited Airlines
Fri 2/277:05 amATH - PWM
2 stops23h 15mUnited Airlines
Deal found 1/6$517
This American Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1012:44 pmPWM - DBV
2 stops23h 41mAmerican Airlines
Tue 3/3112:50 pmDBV - PWM
2 stops16h 47mAmerican Airlines
Deal found 1/7$526
This Air France deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/102:30 pmPWM - ZAG
2 stops17h 45mMultiple Airlines
Tue 3/318:25 amZAG - PWM
2 stops21h 34mMultiple Airlines
Deal found 1/7$532
This KLM deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:35 pmPWM - ATH
2 stops16h 00mMultiple Airlines
Sat 3/1411:50 amATH - PWM
1 stop17h 13mMultiple Airlines
Deal found 1/8$567
This Delta deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:35 pmPWM - ATH
2 stops25h 20mDelta
Wed 9/306:00 amATH - PWM
2 stops24h 59mDelta
Deal found 1/8$692
This Delta deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:50 pmPWM - ATH
2 stops17h 50mDelta
Mon 10/52:35 pmATH - PWM
2 stops30h 18mDelta
Deal found 1/7$711
This Delta deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:35 pmPWM - ATH
2 stops25h 20mDelta
Wed 5/203:30 pmATH - PWM
1 stop15h 29mDelta
Deal found 1/7$746
This Ovago deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:35 pmPWM - ATH
1 stop15h 45mScandinavian Airlines
Sun 9/271:10 pmATH - PWM
2 stops29h 45mScandinavian Airlines
Deal found 1/7$767
This American Airlines deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:01 amPWM - ATH
1 stop18h 09mAmerican Airlines
Wed 9/3012:55 pmATH - PWM
1 stop16h 54mAmerican Airlines
Deal found 1/8$788
This Delta deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:35 pmPWM - ATH
2 stops25h 20mDelta
Sun 9/276:00 amATH - PWM
2 stops24h 59mDelta
Deal found 1/7$801
This Air Canada deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/103:44 pmPWM - ZAG
3 stops17h 06mAir Canada
Tue 3/316:50 amZAG - PWM
3 stops17h 47mAir Canada
Deal found 1/7$1,035

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Southeast Europe 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, Cheapflights users made 2,558,603 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from Portland to Southeast Europe that are best for you.

Fly from

Portland

Fly to

Southeast Europe

Route

Depart

Return

Price

PortlandAthens

PWM - ATH

PWMATH

Portland

Sat 2/21

5:45 am-1:40 am

2 stops36h 55m

Athens Eleftherios V.

Sat 2/28

6:30 am-2:23 pm

2 stops38h 53m

$508

PortlandDubrovnik

PWM - DBV

PWMDBV

Portland

Tue 3/10

12:44 pm-5:25 pm

2 stops23h 41m

Dubrovnik

Tue 3/31

12:50 pm-11:37 pm

2 stops16h 47m

$526

PortlandZagreb

PWM - ZAG

PWMZAG

Portland

Tue 3/10

2:30 pm-1:15 pm

2 stops17h 45m

Zagreb Franjo Tuđman

Tue 3/31

8:25 am-11:59 pm

2 stops21h 34m

$532

PortlandAthens

PWM - ATH

PWMATH

Portland

Wed 3/4

2:35 pm-1:35 pm

2 stops16h 00m

Athens Eleftherios V.

Sat 3/14

11:50 am-11:03 pm

1 stop17h 13m

$567

PortlandAthens

PWM - ATH

PWMATH

Portland

Fri 5/15

2:35 pm-10:55 pm

2 stops25h 20m

Athens Eleftherios V.

Wed 5/20

3:30 pm-11:59 pm

1 stop15h 29m

$746

PortlandAthens

PWM - ATH

PWMATH

Portland

Sat 4/18

4:23 pm-10:35 am

1 stop35h 12m

Athens Eleftherios V.

Sat 5/2

12:10 pm-6:25 pm

2 stops37h 15m

$833

PortlandAthens

PWM - ATH

PWMATH

Portland

Fri 5/15

11:17 am-8:10 am

1 stop13h 53m

Athens Eleftherios V.

Wed 5/20

12:35 pm-9:21 pm

1 stop15h 46m

$842

PortlandAthens

PWM - ATH

PWMATH

Portland

Fri 5/15

2:35 pm-1:40 pm

2 stops16h 05m

Athens Eleftherios V.

Wed 5/20

3:30 pm-11:59 pm

1 stop15h 29m

$846

PortlandAthens

PWM - ATH

PWMATH

Portland

Tue 4/7

6:25 am-7:50 am

1 stop18h 25m

Athens Eleftherios V.

Tue 6/30

3:30 pm-11:59 pm

1 stop15h 29m

$867

PortlandAthens

PWM - ATH

PWMATH

Portland

Tue 3/31

5:18 am-11:00 am

1 stop22h 42m

Athens Eleftherios V.

Tue 6/30

3:30 pm-11:59 pm

1 stop15h 29m

$871

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 15 results
1
2

Best time to book a flight from Portland to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from Portland 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Southeast Europe

What is the cheapest month to book a flight from Portland, Maine to Southeast Europe?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Southeast Europe (average of $147). Flying from Portland, Maine to Southeast Europe in June is currently the most expensive (average of $473). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Southeast Europe

Get insights into the airlines that provide service to Southeast Europe. 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 Southeast Europe. Reviews last updated January 8, 2026.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Air Serbia from Portland to Southeast Europe to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,032 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,032 reviews
Delta
7.9
Good
8,032 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,143 reviews
Delta
7.9
Good
8,032 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Serbia
6.2
Okay
212 reviews
Delta
7.9
Good
8,032 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Portland to Southeast Europe. 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 Portland to Southeast Europe?

    Portland (PWM) is the airport you will fly out of if you book a flight from Portland to Southeast Europe. It is only a 2.9 mi journey to Portland (PWM) from Portland’s city center.

  • How long is the flight from Portland, Maine to Southeast Europe?

    There are many flights that can get you from Portland, Maine to Southeast Europe in 23h 41m. Fly via United Airlines, American Airlines, or Delta to get the fastest option. Portland, Maine and Southeast Europe are separated by a distance of 4233 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Portland, Maine to Southeast Europe?

    The most popular flight routes from Portland, Maine to Southeast Europe are Portland - Athens Eleftherios V., Portland - Zagreb Franjo Tuđman and Portland - Dubrovnik.

  • Can I find deals for flights from Portland to Southeast Europe that include hotel bookings?

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

  • How can I find direct flights from Portland to Southeast Europe?

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

  • Can I find deals for business class flights from Portland to Southeast Europe?

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

  • What is the cheapest month to book a flight from Portland, Maine to Southeast Europe?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Southeast Europe (average of $147). Flying from Portland, Maine to Southeast Europe in June is currently the most expensive (average of $473). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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 Southeast Europe

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Heathrow flights
Boston to Charles de Gaulle flights
Boston to Leonardo da Vinci/Fiumicino flights
Boston to Dublin flights
Boston to Gatwick flights
Boston to Lisbon flights
Boston to Madrid flights
Boston to Athens flights
Boston to London City flights
Boston to Barcelona-El Prat flights
Boston to Amsterdam flights
Boston to Orly flights
Boston to Stansted flights
Boston to Istanbul flights
Boston to Edinburgh flights
Boston to Zurich flights
Boston to Keflavik Intl flights
Boston to Ponta Delgada flights
Boston to Frankfurt flights
Boston to Luton flights
Boston to Vicenza flights
Boston to Florence flights
Boston to Porto flights
Boston to Malpensa flights
Boston to Munich flights
Boston to Beauvais-Tille flights
Boston to Shannon flights
Boston to Copenhagen flights
Boston to Linate flights
Boston to Sabiha Gokcen flights
Boston to Frederic Chopin flights
Boston to Glasgow Intl flights
Boston to Geneva flights
Boston to Tirana flights
Boston to Naples flights
Boston to Vienna flights
Boston to Bologna flights
Boston to Bruxelles-National flights
Boston to Prague flights
Boston to Oslo Gardermoen flights
Boston to Nice flights
Boston to Arlanda flights
Boston to Berlin flights
Boston to Funchal flights
Boston to Dubrovnik flights
Boston to Manchester flights
Boston to Málaga flights
Boston to Bergamo flights
Boston to Ciampino flights
Boston to Catania flights

Top 3 airlines flying from Portland to Southeast Europe

Discover the top 3 airlines that operate flights from Portland to Southeast Europe. 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$147Average$1,153FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$642Average$1,585FlexibilityNo cancel feeOn-time69%
Air SerbiaCheapest$897Average$1,035FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.