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$366+ Cheap flights from Portland (PDX) to Sofia (SOF)

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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SOF
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Sofia are usually found in February or November, booked 24 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Portland to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Sofia (SOF). 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,152
(Justfly.com)

One-way from

$366
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$920
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 Sofia
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One-way flight from Portland to Sofia
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Portland to Sofia

Cheapest flights from Portland to Sofia
Explore the most affordable flight options available from Portland to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This FlightHub deal was found by Cheapflights users on 3/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:40 pmPDX - SOF
2 stops37h 00mMultiple Airlines
Mon 10/203:30 pmSOF - PDX
2 stops37h 16mMultiple Airlines
Deal found 3/27$728
This KLM deal was found by Cheapflights users on 3/27. 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.
Mon 10/131:15 pmPDX - SOF
1 stop14h 45mKLM
Mon 10/207:00 amSOF - PDX
2 stops21h 08mKLM
Deal found 3/27$804
This Air Canada deal was found by Cheapflights users on 3/27. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:15 amPDX - SOF
3 stops25h 35mAir Canada
Mon 10/206:00 amSOF - PDX
3 stops22h 46mAir Canada
Deal found 3/27$964
This Justfly.com deal was found by Cheapflights users on 3/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/17:25 pmPDX - SOF
1 stop15h 15mBritish Airways
Mon 7/218:00 pmSOF - PDX
1 stop31h 35mBritish Airways
Deal found 3/27$1,152
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 6/3011:30 pmPDX - SOF
2 stops27h 50mUnited Airlines
Mon 7/211:50 pmSOF - PDX
2 stops59h 24mUnited Airlines
Deal found 3/27$1,183

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Sofia 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 March 28, 2025.
Use the filters below to find and compare flights from Portland to Sofia that are best for you.

Fly from

Portland

Fly to

Sofia

Route

Depart

Return

Price

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 7/1

7:25 pm-8:40 pm

1 stop15h 15m

Sofia

Mon 7/21

8:00 pm-5:35 pm

1 stop31h 35m

$1,152

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 6/30

1:45 pm-11:40 am

3 stops35h 55m

Sofia

Mon 7/21

6:25 am-12:52 pm

3 stops40h 27m

$1,171

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 6/30

11:30 pm-1:20 pm

2 stops27h 50m

Sofia

Mon 7/21

1:50 pm-3:14 pm

2 stops59h 24m

$1,183

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 5/30

11:25 am-2:00 pm

2 stops16h 35m

Sofia

Sun 8/10

7:00 am-5:07 pm

2 stops20h 07m

$1,393

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 5/18

5:30 pm-9:10 am

3 stops53h 40m

$366

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 5/18

1:15 pm-2:00 pm

1 stop14h 45m

$750

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 5/18

1:45 pm-12:00 pm

3 stops36h 15m

$912

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 6/28

12:07 am-7:10 pm

2 stops33h 03m

$1,376

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Portland to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Sofia in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Sofia 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 Portland-Sofia 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 Portland to Sofia

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

How far ahead should I book a flight from Portland to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Sofia. Price data was last updated on March 21, 2025.

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Sofia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Portland to Sofia (average of $632). Flying from Portland to Sofia in June is currently the most expensive (average of $1,243). 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 SOF?

Find hourly flight availability from Portland to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Sofia at noon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Portland to Sofia?

Use this chart to determine the cheapest time to fly round-trip from Portland to Sofia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Sofia flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

Plan your trip to Sofia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated March 28, 2025.
KLM
7.8
Good
1,321 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,321 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,603 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
British Airways
6.6
Okay
6,712 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

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

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

    Cheapflights users have booked flights from Portland to Sofia round-trip from $1,152. Other airlines that can offer you cheap pricing are United Airlines, from $1,183, and KLM, from $1,393.

  • What are the cheapest airlines to fly from Portland to Sofia one-way?

    The cheapest airlines for a one-way flight from Portland to Sofia are KLM ($750), United Airlines ($912), and American Airlines ($1,376).

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Portland to Sofia (average of $632). Flying from Portland to Sofia in June is currently the most expensive (average of $1,243). 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

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Alternative routes for Portland to Sofia

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

Top 4 airlines flying from Portland to Sofia

Discover the top 4 airlines that operate flights from Portland to Sofia. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$564Average$1,184FlexibilityNo cancel feeOn-time69%
KLMCheapest$668Average$947FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$763Average$1,099FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$936Average$1,183FlexibilityNo cancel feeOn-time76%
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