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$939+ Cheap flights from Sofia (SOF) to Portland (PDX)

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — PDX
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
1 adult, Economy
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Cheap flight deals from Sofia to Portland

Cheapest flights from Sofia to Portland
Explore the most affordable flight options available from Sofia to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2026.

This United Airlines deal was found by Cheapflights users on 2/18. 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 3/136:10 am
SOF
-
PDX
2 stops21h 37m
United Airlines
Thu 9/38:46 am
PDX
-
SOF
2 stops28h 14m
United Airlines
Deal found 2/18$939
This KLM deal was found by Cheapflights users on 2/18. 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.
Fri 3/137:00 am
SOF
-
PDX
1 stop14h 25m
KLM
Thu 9/31:05 pm
PDX
-
SOF
1 stop14h 55m
KLM
Deal found 2/18$976
This Lufthansa deal was found by Cheapflights users on 2/20. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/202:00 pm
SOF
-
PDX
2 stops19h 19m
Lufthansa
Wed 2/253:50 pm
PDX
-
SOF
2 stops20h 55m
Lufthansa
Deal found 2/20$1,306
This Mytrip deal was found by Cheapflights users on 2/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:00 am
SOF
-
PDX
2 stops20h 00m
Multiple Airlines
Thu 9/36:18 pm
PDX
-
SOF
3 stops35h 17m
Multiple Airlines
Deal found 2/18$1,512
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:45 pm
SOF
-
PDX
2 stops33h 45m
Multiple Airlines
Wed 2/259:50 am
PDX
-
SOF
3 stops23h 40m
Multiple Airlines
Deal found 2/20$1,967

Find flight deals from Sofia to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Portland (PDX). 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 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$939
(United Airlines)
Provider with most accurate pricing for Sofia-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Portland flights.
Search Deals
From Sofia to Portland
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sofia to Portland 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 February 22, 2026.
Use the filters below to find and compare flights from Sofia to Portland that are best for you.

Fly from

Sofia

Fly to

Portland

Route

Depart

Return

Price

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 3/13

6:10 am-6:47 pm

2 stops21h 37m

Portland

Thu 9/3

8:46 am-11:00 pm

2 stops28h 14m

$939

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 3/13

7:00 am-12:25 pm

1 stop14h 25m

Portland

Thu 9/3

1:05 pm-2:00 pm

1 stop14h 55m

$976

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 3/13

7:00 am-6:00 pm

2 stops20h 00m

Portland

Thu 9/3

6:18 pm-3:35 pm

3 stops35h 17m

$1,512

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

  • Most accurate provider: When it comes to deals on Sofia-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sofia to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Sofia 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 Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated February 22, 2026.
Peruse reviews from past customers who have flown with KLM and United Airlines from Sofia to Portland 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
1,457 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,457 reviews
KLM
7.7
Good
1,457 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,341 reviews
KLM
7.7
Good
1,457 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

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

  • How long is the flight from Sofia to Portland?

    A quick flight from Sofia to Portland can take about 14h 25m. United Airlines provides one of the quickest options available for as low as $976. There are 5985 mi between Sofia and Portland. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Sofia to Portland round-trip?

    Cheapflights users have booked flights from Sofia to Portland round-trip from $784. Another airline that can offer you cheap pricing is United Airlines.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Longview
Lake Oswego
Hillsboro
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Beaverton
Depoe Bay
Stevenson
Wilsonville
Tillamook
Pacific City
Gresham

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Alternative routes for Sofia to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Sofia to Boise flights

Top 2 airlines flying from Sofia to Portland

Discover the top 2 airlines that operate flights from Sofia to Portland. 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 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$784Average$1,075FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$834Average$948FlexibilityNo cancel feeOn-time69%

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