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$556+ Cheap flights from Sofia (SOF) to Portland (PDX)

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — PDX
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheap 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 August 21, 2025.

Round-trip from

$829
(United Airlines)

One-way from

$556
(Kiwi.com)
From Sofia to Portland
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One-way flight from Sofia to Portland
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Find 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 August 21, 2025.

This United Airlines deal was found by Cheapflights users on 8/21. 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 9/56:15 amSOF - PDX
2 stops26h 10mUnited Airlines
Wed 9/106:15 amPDX - SOF
2 stops25h 35mUnited Airlines
Deal found 8/21$829
This United Airlines deal was found by Cheapflights users on 8/21. 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 9/66:00 amSOF - PDX
2 stops25h 01mUnited Airlines
Sat 9/133:46 pmPDX - SOF
2 stops21h 04mUnited Airlines
Deal found 8/21$846
This Air France deal was found by Cheapflights users on 8/21. 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.
Fri 9/57:00 amSOF - PDX
2 stops23h 59mMultiple Airlines
Wed 9/101:15 pmPDX - SOF
1 stop14h 45mMultiple Airlines
Deal found 8/21$952
This Air Canada deal was found by Cheapflights users on 8/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:00 amSOF - PDX
3 stops18h 46mAir Canada
Wed 9/106:15 amPDX - SOF
2 stops25h 35mAir Canada
Deal found 8/20$1,071
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/316:00 amSOF - PDX
2 stops26h 51mUnited Airlines
Tue 6/95:45 amPDX - SOF
2 stops26h 10mUnited Airlines
Deal found 8/20$1,073
This SWISS deal was found by Cheapflights users on 8/21. 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.
Fri 9/512:45 pmSOF - PDX
3 stops43h 40mSWISS
Wed 9/101:01 pmPDX - SOF
3 stops59h 04mSWISS
Deal found 8/21$1,088
This KLM deal was found by Cheapflights users on 8/21. 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.
Sat 9/67:00 amSOF - PDX
1 stop14h 20mKLM
Sat 9/137:15 amPDX - SOF
2 stops20h 45mKLM
Deal found 8/21$1,106
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Sun 8/246:00 amSOF - PDX
2 stops26h 42mUnited Airlines
Sat 8/3010:50 pmPDX - SOF
2 stops27h 10mUnited Airlines
Deal found 8/19$1,112
This American Airlines deal was found by Cheapflights users on 8/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/52:20 pmSOF - PDX
1 stop37h 15mAmerican Airlines
Wed 9/107:25 pmPDX - SOF
1 stop32h 05mAmerican Airlines
Deal found 8/20$1,120

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 August 21, 2025.
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 9/5

6:15 am-10:25 pm

2 stops26h 10m

Portland

Wed 9/10

6:15 am-5:50 pm

2 stops25h 35m

$829

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Sat 9/6

6:00 am-9:01 pm

2 stops25h 01m

Portland

Sat 9/13

3:46 pm-10:50 pm

2 stops21h 04m

$846

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 9/5

7:00 am-8:59 pm

2 stops23h 59m

Portland

Wed 9/10

1:15 pm-2:00 pm

1 stop14h 45m

$952

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 9/5

6:00 am-2:46 pm

3 stops18h 46m

Portland

Wed 9/10

6:15 am-5:50 pm

2 stops25h 35m

$1,071

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Sun 8/31

6:00 am-10:51 pm

2 stops26h 51m

Portland

Tue 6/9

5:45 am-5:55 pm

2 stops26h 10m

$1,073

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 9/5

12:45 pm-10:25 pm

3 stops43h 40m

Portland

Wed 9/10

1:01 pm-10:05 am

3 stops59h 04m

$1,088

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Sat 9/6

7:00 am-11:20 am

1 stop14h 20m

Portland

Sat 9/13

7:15 am-2:00 pm

2 stops20h 45m

$1,106

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Fri 9/5

2:20 pm-5:35 pm

1 stop37h 15m

Portland

Wed 9/10

7:25 pm-1:30 pm

1 stop32h 05m

$1,120

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Thu 9/4

1:20 pm-12:38 pm

3 stops57h 18m

$556

SofiaPortland

SOF - PDX

SOFPDX

Sofia

Tue 9/2

8:05 pm-12:08 pm

3 stops50h 03m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 13 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Sofia to Portland

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

Find hourly flight availability from Sofia to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

A simple way to save on the total cost of your ticket is to fly from Sofia to Portland at noon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the morning.

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 August 21, 2025.
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
7.8
Good
1,388 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,388 reviews
KLM
7.8
Good
1,388 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,934 reviews
KLM
7.8
Good
1,388 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 26h 10m. United Airlines provides one of the quickest options available for as low as $829. There are 5985 mi between Sofia and Portland.

  • 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.

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

    Currently, November is the cheapest month in which you can book a flight from Sofia to Portland (average of $277). Flying from Sofia to Portland in March is currently the most expensive (average of $368). 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

Traveling to a place near Portland?

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

Browse thousands of different options on Cheapflights for your next trip

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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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$784Average$1,072FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$834Average$885FlexibilityNo cancel feeOn-time69%

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