HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bulgaria

$533+ Cheap flights from Portland (PDX) to Bulgaria

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 12/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SOF
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Bulgaria 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 Bulgaria

Cheapest flights from Portland to Bulgaria
Explore the most affordable flight options available from Portland to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Gotogate deal was found by Cheapflights users on 12/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:45 pmPDX - SOF
2 stops16h 30mMultiple Airlines
Thu 12/186:05 pmSOF - PDX
2 stops32h 55mMultiple Airlines
Deal found 12/13$4,049
This Air Canada deal was found by Cheapflights users on 12/13. 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 12/169:50 amPDX - SOF
2 stops22h 30mAir Canada
Thu 12/182:35 pmSOF - PDX
3 stops28h 40mAir Canada
Deal found 12/13$11,165
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Tue 12/167:00 amPDX - SOF
3 stops20h 15mUnited Airlines
Thu 12/187:55 amSOF - PDX
2 stops22h 53mUnited Airlines
Deal found 12/13$14,751
This SWISS deal was found by Cheapflights users on 12/13. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:50 amPDX - SOF
3 stops21h 30mSWISS
Thu 12/184:00 pmSOF - PDX
3 stops40h 40mSWISS
Deal found 12/13$16,296

Find flight deals from Portland to Bulgaria

Keep the following information in mind while searching for Portland to Bulgaria flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$545
(United Airlines)

One-way from

$533
(Ovago)

Popular in

May

Cheapest in

February

Average price

$783
Provider with most accurate pricing for Portland-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Sofia flights.
Search Deals
From Portland to Bulgaria
Search Deals
One-way flight from Portland to Bulgaria
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($290 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Bulgaria 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 December 15, 2025.
Use the filters below to find and compare flights from Portland to Bulgaria that are best for you.

Fly from

Portland

Fly to

Bulgaria

Route

Depart

Return

Price

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 1/29

1:35 pm-10:45 pm

2 stops23h 10m

Sofia

Mon 2/2

6:10 am-9:49 pm

2 stops25h 39m

$545

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 1/22

1:24 pm-10:45 pm

3 stops23h 21m

Sofia

Mon 1/26

6:10 am-12:39 am

2 stops28h 29m

$545

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 1/9

7:45 am-6:20 pm

2 stops24h 35m

Sofia

Fri 1/16

6:10 am-6:30 pm

2 stops22h 20m

$719

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 1/9

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

Fri 1/16

7:00 am-11:25 am

1 stop14h 25m

$735

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 1/9

7:45 am-6:20 pm

2 stops24h 35m

Sofia

Fri 1/16

6:10 am-12:31 am

3 stops28h 21m

$745

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 12/28

12:54 pm-10:45 pm

2 stops23h 51m

$533

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 12/25

12:39 pm-6:05 pm

3 stops43h 26m

$622

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 12/26

6:15 am-1:55 pm

2 stops21h 40m

$635

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 12/25

7:15 am-1:55 pm

2 stops20h 40m

$635

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 12/28

1:25 pm-2:05 pm

1 stop14h 40m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 15 results
1
2

Best time to book a flight from Portland to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria 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 Bulgaria

What is the cheapest month to book a flight from Portland to Bulgaria?

Currently, September is the cheapest month in which you can book a flight from Portland to Bulgaria (average of $638). Flying from Portland to Bulgaria in May is currently the most expensive (average of $1,169). 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.

What is the cheapest time of day to fly from PDX to BG?

Find hourly flight availability from Portland to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

It’s typically best to fly out from Portland to Bulgaria in the evening. Doing so could potentially save you 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated December 15, 2025.
Peruse reviews from past customers who have flown with KLM, United Airlines, and Lufthansa from Portland to Bulgaria 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.
KLM
7.7
Good
1,430 reviews

Entertainment

7.1

Overall

7.7

Comfort

7.6

Boarding

7.8

Food

7.2

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,430 reviews
KLM
7.7
Good
1,430 reviews

Entertainment

7.1

Overall

7.7

Comfort

7.6

Boarding

7.8

Food

7.2

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
United Airlines
7.4
Good
9,092 reviews
KLM
7.7
Good
1,430 reviews

Entertainment

7.1

Overall

7.7

Comfort

7.6

Boarding

7.8

Food

7.2

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,628 reviews
KLM
7.7
Good
1,430 reviews

Entertainment

7.1

Overall

7.7

Comfort

7.6

Boarding

7.8

Food

7.2

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

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

    For a flight from Portland to Bulgaria, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city.

  • How long is the flight from Portland to Bulgaria?

    A quick flight from Portland to Bulgaria can take about 23h 10m. United Airlines provides one of the quickest options available for as low as $545. Airlines will cover a distance of 5985 mi.

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

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

  • How can I find direct flights from Portland to Bulgaria?

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

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

    Yes. Cheapflights offers flight deals from Portland to Bulgaria 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 to Bulgaria?

    Currently, September is the cheapest month in which you can book a flight from Portland to Bulgaria (average of $638). Flying from Portland to Bulgaria in May is currently the most expensive (average of $1,169). 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 Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Heathrow flights
Portland to Amsterdam flights
Portland to Charles de Gaulle flights
Portland to Orly flights
Portland to Gatwick flights
Portland to Leonardo da Vinci/Fiumicino flights
Portland to Barcelona-El Prat flights
Portland to Dublin flights
Portland to Madrid flights
Portland to Lisbon flights
Portland to London City flights
Portland to Athens flights
Portland to Frankfurt flights
Portland to Istanbul flights
Portland to Stansted flights
Boise to Barcelona-El Prat flights
Portland to Malpensa flights
Portland to Glasgow Intl flights
Portland to Keflavik Intl flights
Portland to Oslo Gardermoen flights
Portland to Vicenza flights
Portland to Copenhagen flights
Portland to Linate flights
Boise to Leonardo da Vinci/Fiumicino flights
Portland to Edinburgh flights
Boise to Heathrow flights
Portland to Arlanda flights
Portland to Sabiha Gokcen flights
Portland to Málaga flights
Portland to Florence flights
Portland to Zurich flights
Portland to Prague flights
Portland to Bruxelles-National flights
Portland to Geneva flights
Boise to Dublin flights
Boise to Charles de Gaulle flights
Redmond to Heathrow flights
Portland to Budapest flights
Boise to Gatwick flights
Portland to Vienna flights
Portland to Porto flights
Portland to Split flights
Portland to Helsinki flights
Portland to Frederic Chopin flights
Portland to Berlin flights
Boise to Frankfurt flights
Boise to Lisbon flights
Portland to Valencia flights
Portland to Naples flights
Boise to London City flights

Top 3 airlines flying from Portland to Bulgaria

Discover the top 3 airlines that operate flights from Portland to Bulgaria. 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$635Average$961FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$639Average$896FlexibilityNo cancel feeOn-time69%
KLMCheapest$692Average$949FlexibilityNo cancel feeOn-time75%

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.