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$525+ Cheap flights from Portland (PDX) to Bulgaria

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SOF
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
1 adult, Economy
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Cheap flight deals from Portland to Bulgaria

Keep the following information in mind while searching for Portland to Bulgaria flight deals. Data was last updated octubre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$525
(FlightHub)

Popular in

May

Cheapest in

November

Average price

$748
Provider with most accurate pricing for Portland-Sofia flight deals.
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Provider most trusted by Cheapflights users for Portland-Sofia flights.
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From Portland to Bulgaria
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($257 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 octubre 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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.
vie. 11/2810:05 amPDX - SOF
2 stops26h 40mUnited Airlines
mar. 12/232:00 pmSOF - PDX
2 stops54h 01mUnited Airlines
Deal found 10/27$559
This United deal was found by Cheapflights users on 10/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/237:00 amPDX - SOF
2 stops25h 00mMultiple Airlines
mié. 12/36:10 amSOF - PDX
2 stops37h 05mMultiple Airlines
Deal found 10/28$595
This Expedia deal was found by Cheapflights users on 10/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2410:52 amPDX - SOF
2 stops21h 28mMultiple Airlines
mar. 12/22:15 pmSOF - PDX
2 stops38h 15mMultiple Airlines
Deal found 10/28$601
This SWISS deal was found by Cheapflights users on 10/28. 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.
lun. 11/2410:52 amPDX - SOF
3 stops21h 28mSWISS
mar. 12/22:00 pmSOF - PDX
3 stops42h 15mSWISS
Deal found 10/28$643
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2912:55 pmPDX - SOF
2 stops20h 25mLufthansa
dom. 11/236:10 amSOF - PDX
2 stops22h 20mLufthansa
Deal found 10/27$671
This Air France deal was found by Cheapflights users on 10/27. 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.
mié. 10/299:58 amPDX - SOF
2 stops19h 07mMultiple Airlines
dom. 11/237:00 amSOF - PDX
1 stop14h 25mMultiple Airlines
Deal found 10/27$683
This KLM deal was found by Cheapflights users on 10/27. 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.
mié. 10/292:25 pmPDX - SOF
1 stop14h 40mKLM
dom. 11/237:00 amSOF - PDX
1 stop14h 25mKLM
Deal found 10/27$684
This KLM deal was found by Cheapflights users on 10/28. 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.
lun. 11/241:25 pmPDX - SOF
1 stop14h 40mKLM
mar. 12/27:00 amSOF - PDX
2 stops18h 33mKLM
Deal found 10/28$695
This KLM deal was found by Cheapflights users on 10/28. 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.
dom. 11/231:25 pmPDX - SOF
1 stop14h 40mKLM
mié. 12/37:00 amSOF - PDX
2 stops20h 43mKLM
Deal found 10/28$750

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 octubre 29, 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

lun. 1/12

3:50 pm-10:45 pm

2 stops20h 55m

Sofia

vie. 1/30

6:10 am-6:30 pm

2 stops22h 20m

$525

PortlandSofia

PDX - SOF

PDXSOF

Portland

lun. 1/12

7:00 am-2:05 pm

2 stops21h 05m

Sofia

vie. 1/30

7:00 am-11:25 am

1 stop14h 25m

$533

PortlandSofia

PDX - SOF

PDXSOF

Portland

vie. 11/28

10:05 am-10:45 pm

2 stops26h 40m

Sofia

mar. 12/23

2:00 pm-10:01 am

2 stops54h 01m

$559

PortlandSofia

PDX - SOF

PDXSOF

Portland

dom. 11/23

7:00 am-6:00 pm

2 stops25h 00m

Sofia

mié. 12/3

6:10 am-9:15 am

2 stops37h 05m

$595

PortlandSofia

PDX - SOF

PDXSOF

Portland

lun. 11/24

10:52 am-6:20 pm

2 stops21h 28m

Sofia

mar. 12/2

2:15 pm-6:30 pm

2 stops38h 15m

$601

PortlandSofia

PDX - SOF

PDXSOF

Portland

lun. 11/24

10:52 am-6:20 pm

3 stops21h 28m

Sofia

mar. 12/2

2:00 pm-10:15 pm

3 stops42h 15m

$643

PortlandSofia

PDX - SOF

PDXSOF

Portland

dom. 11/23

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

mié. 12/3

7:00 am-5:43 pm

2 stops20h 43m

$750

PortlandSofia

PDX - SOF

PDXSOF

Portland

lun. 1/12

11:59 pm-6:20 pm

3 stops32h 21m

Sofia

vie. 1/30

2:35 pm-2:40 pm

3 stops34h 05m

$811

PortlandSofia

PDX - SOF

PDXSOF

Portland

vie. 11/28

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

mar. 12/23

7:00 am-8:34 pm

2 stops23h 34m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 octubre 29, 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 octubre 29, 2025.
Peruse reviews from past customers who have flown with KLM, United Airlines, and Air Canada 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
1,406 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
8,998 reviews
KLM
7.7
Good
1,406 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Air Canada
7.1
Good
10,375 reviews
KLM
7.7
Good
1,406 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,541 reviews
KLM
7.7
Good
1,406 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 20h 55m. Lufthansa provides one of the quickest options available for as low as $525. Airlines will cover a distance of 5985 mi. This flight may include one or multiple stops.

  • 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

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Top 4 airlines flying from Portland to Bulgaria

Discover the top 4 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 octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$638Average$1,009FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$639Average$924FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$678Average$1,124FlexibilityNo cancel feeOn-time67%
KLMCheapest$692Average$929FlexibilityNo cancel feeOn-time75%

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