Sofia

$296+ Cheap flights from Portland (PDX) to Sofia (SOF)

PDX — SOF
Dec 2 — Dec 91
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Cheap flight deals from Portland to Sofia

Cheapest flights from Portland to Sofia

Mon 11/307:10 pm -
2 stops32h 15m
Mon 12/73:00 pm -
2 stops41h 45m
Deal found 11/2$812
Mon 12/72:26 pm -
2 stops17h 54m
Sun 12/136:25 am -
2 stops22h 18m
Deal found 11/1$843
Mon 12/71:30 pm -
2 stops44h 40m
Sun 12/137:45 pm -
1 stop30h 05m
Deal found 11/1$861
Mon 12/77:10 pm -
3 stops32h 15m
Sun 12/136:00 am -
2 stops37h 26m
Deal found 11/1$862
Fri 12/410:00 am -
2 stops17h 25m
Sun 12/136:00 am -
2 stops24h 46m
Deal found 10/29$888
Wed 11/1810:47 am -
2 stops18h 38m
Tue 11/246:25 am -
2 stops24h 21m
Deal found 10/29$900
Wed 11/43:40 pm -
2 stops21h 15m
Sun 11/86:25 am -
2 stops22h 06m
Deal found 10/28$943
Fri 12/47:00 am -
3 stops20h 25m
Sun 12/136:25 am -
3 stops22h 06m
Deal found 10/29$948

Find flight deals from Portland to Sofia

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(Air Canada)

One-way from

$296
(Kiwi.com)

Popular in

October

Cheapest in

April

Average price

$961
Provider with most accurate pricing for Portland-Sofia flight deals.
Provider most trusted by Cheapflights users for Portland-Sofia flights.
From Portland to Sofia
One-way flight from Portland to Sofia
Highest demand for flights based on searches. 14% potential increase in price ($154 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Portland to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Mon 11/23

7:57 pm-11:05 am

3 stops53h 08m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$410

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Thu 1/14

7:00 am-10:00 pm

3 stops29h 00m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$456
Quickest round-trip

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Wed 11/25

10:47 am-1:15 pm

2 stops16h 28m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$509

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Wed 11/25

5:30 am-6:20 pm

2 stops26h 50m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$509

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Wed 11/18

10:47 am-1:15 pm

3 stops40h 28m

Sofia

Wed 12/31

12:00 am-2:00 pm

Nonstop0h 00m

$555

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Mon 4/19

12:40 pm-11:05 pm

2 stops24h 25m

Sofia

Fri 4/23

6:20 am-8:33 pm

3 stops24h 13m

$742

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Sun 1/31

7:10 am-1:15 pm

2 stops20h 05m

Sofia

Fri 2/19

6:25 am-5:51 pm

2 stops21h 26m

$742

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Sat 1/30

7:24 pm-11:00 pm

2 stops41h 36m

Sofia

Thu 2/18

6:25 am-5:51 pm

2 stops21h 26m

$759

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Mon 2/1

3:40 pm-10:55 pm

2 stops21h 15m

Sofia

Sat 2/20

2:00 pm-9:01 pm

2 stops41h 01m

$800

PortlandSofia

PDX Portland - SOF Sofia

PDXSOF

Portland

Wed 2/3

10:46 am-3:25 pm

2 stops18h 39m

Sofia

Sun 2/21

2:00 pm-9:01 pm

3 stops41h 01m

$814

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Portland to Sofia

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Sofia in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars

*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

Reviews of airlines servicing Sofia

Read reviews from past customers who have flown KLM,United Airlines, andLufthansa from Portland to Sofia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.4

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.4

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.4

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Comfort

7.7

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.4

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Related info for your journey

  • How long is the flight from Portland to Sofia?

    United Airlines, SWISS, and Lufthansa can get you from Portland to Sofia in just under 17h 54m. Your travel time can differ by up to 6h 31m. Airlines will cover a distance of 5985 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Portland to Sofia round-trip from $555. Other airlines that can offer you cheap pricing are Lufthansa, from $555, and United Airlines, from $638. KLM is priced at 40% lower than the current average price of a flight leaving 3 months from now.

  • 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.

See more FAQs

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Alternative routes for Portland to Sofia

Top 3 airlines flying from Portland to Sofia

AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$555Average$807FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$555Average$1,008FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$638Average$934FlexibilityNo cancel feeOn-time69%

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