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Cheap flights from Portland to Sofia from $283

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Sofia departing on 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:50 am - 6:40 pm
PDX
-
SOF
21h 50m
2 stops
United Airlines Logo
6:10 am - 2:45 pm
SOF
-
PDX
18h 35m
2 stops
$537United Airlines
Sun, Apr 19 - Tue, May 5
Multiple Airlines Logo
3:15 pm - 11:00 pm
PDX
-
SOF
21h 45m
2 stops
Multiple Airlines Logo
6:20 am - 11:50 pm
SOF
-
PDX
27h 30m
2 stops
$538Multiple Airlines
Mon, Apr 20 - Fri, May 1
Multiple Airlines Logo
3:15 pm - 11:00 pm
PDX
-
SOF
21h 45m
2 stops
Multiple Airlines Logo
6:20 am - 11:50 pm
SOF
-
PDX
27h 30m
2 stops
$539Multiple Airlines
Mon, Apr 20 - Fri, May 1
Lufthansa Logo
2:10 pm - 11:10 pm
PDX
-
SOF
23h 00m
2 stops
Lufthansa Logo
6:10 am - 7:05 pm
SOF
-
PDX
22h 55m
2 stops
$542Lufthansa
Tue, Apr 14 - Tue, May 5
Multiple Airlines Logo
3:15 pm - 11:10 pm
PDX
-
SOF
21h 55m
2 stops
Multiple Airlines Logo
6:20 am - 11:50 pm
SOF
-
PDX
27h 30m
2 stops
$543Multiple Airlines
Mon, Apr 20 - Fri, May 1
Air Canada Logo
7:05 pm - 6:10 pm
PDX
-
SOF
37h 05m
2 stops
Air Canada Logo
6:20 am - 9:30 am
SOF
-
PDX
37h 10m
2 stops
$545Air Canada
Sat, Apr 18 - Wed, May 6
Lufthansa Logo
7:00 am - 1:05 pm
PDX
-
SOF
20h 05m
2 stops
Lufthansa Logo
2:10 pm - 11:50 pm
SOF
-
PDX
19h 40m
2 stops
$546Lufthansa
Tue, Apr 21 - Thu, Apr 30
United Airlines Logo
8:05 am - 12:10 pm
PDX
-
SOF
18h 05m
2 stops
United Airlines Logo
6:20 am - 10:29 pm
SOF
-
PDX
26h 09m
2 stops
$547United Airlines
Tue, Apr 21 - Wed, Apr 29
United Airlines Logo
8:05 am - 12:10 pm
PDX
-
SOF
18h 05m
2 stops
United Airlines Logo
6:10 am - 11:50 pm
SOF
-
PDX
27h 40m
2 stops
$549United Airlines
Wed, Apr 15 - Thu, Apr 30
United Airlines Logo
11:59 pm - 11:10 pm
PDX
-
SOF
37h 11m
2 stops
United Airlines Logo
2:10 pm - 11:50 pm
SOF
-
PDX
19h 40m
2 stops
$553United Airlines
Sat, Apr 18 - Thu, Apr 30

Lufthansa flights from Portland to Sofia

Our best Lufthansa deals on Portland to Sofia flight tickets
Lufthansa
Apr 14
PDX2:10 pmPortland
23h 00m
2 stops
SOF11:10 pmSofia
May 5
SOF6:10 amSofia
22h 55m
2 stops
PDX7:05 pmPortland
$542
Lufthansa
Apr 20
PDX3:15 pmPortland
21h 45m
2 stops
SOF11:00 pmSofia
May 1
SOF6:20 amSofia
27h 30m
2 stops
PDX11:50 pmPortland
$543
Lufthansa
Apr 21
PDX7:00 amPortland
20h 05m
2 stops
SOF1:05 pmSofia
Apr 30
SOF2:10 pmSofia
19h 40m
2 stops
PDX11:50 pmPortland
$546

Air Canada flights from Portland to Sofia

Our best Air Canada deals on Portland to Sofia flight tickets
Air Canada
Apr 18
PDX7:05 pmPortland
37h 05m
2 stops
SOF6:10 pmSofia
May 5
SOF6:10 amSofia
37h 20m
2 stops
PDX9:30 amPortland
$545
Air Canada
May 10
PDX10:10 amPortland
17h 25m
2 stops
SOF1:35 pmSofia
May 26
SOF6:10 amSofia
37h 20m
2 stops
PDX9:30 amPortland
$562
Air Canada
Apr 18
PDX3:15 pmPortland
40h 55m
2 stops
SOF6:10 pmSofia
May 4
SOF2:20 pmSofia
53h 10m
2 stops
PDX9:30 amPortland
$566

momondo 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, momondo users made 832,500 searches. Data last updated February 12, 2026.
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

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 4/19

10:50 am-6:40 pm

2 stops21h 50m

Sofia

Tue 5/5

6:10 am-2:45 pm

2 stops18h 35m

$537

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 4/20

3:15 pm-11:00 pm

2 stops21h 45m

Sofia

Fri 5/1

6:20 am-11:50 pm

2 stops27h 30m

$538

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 4/20

3:15 pm-11:00 pm

2 stops21h 45m

Sofia

Fri 5/1

6:20 am-11:50 pm

2 stops27h 30m

$539

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 4/14

2:10 pm-11:10 pm

2 stops23h 00m

Sofia

Tue 5/5

6:10 am-7:05 pm

2 stops22h 55m

$542

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 4/20

3:15 pm-11:10 pm

2 stops21h 55m

Sofia

Fri 5/1

6:20 am-11:50 pm

2 stops27h 30m

$543

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 4/18

7:05 pm-6:10 pm

2 stops37h 05m

Sofia

Wed 5/6

6:20 am-9:30 am

2 stops37h 10m

$545

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 4/21

7:00 am-1:05 pm

2 stops20h 05m

Sofia

Thu 4/30

2:10 pm-11:50 pm

2 stops19h 40m

$546

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 4/21

8:05 am-12:10 pm

2 stops18h 05m

Sofia

Wed 4/29

6:20 am-10:29 pm

2 stops26h 09m

$547

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 4/15

8:05 am-12:10 pm

2 stops18h 05m

Sofia

Thu 4/30

6:10 am-11:50 pm

2 stops27h 40m

$549

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 4/18

11:59 pm-11:10 pm

2 stops37h 11m

Sofia

Thu 4/30

2:10 pm-11:50 pm

2 stops19h 40m

$553

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Portland to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Sofia?

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Portland is in May. Flight prices, which tend to average around $609, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Sofia from Portland during January instead. Flights to Sofia in January, while not as cheap as those in May, still average around $717.

When to book flights from Portland to Sofia

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Sofia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Sofia (PDX to SOF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Sofia

Fastest flight time

21h 10m

Direct flights

None
The fastest flight from Portland to Sofia takes 21h 10m
There are no direct flights from Portland to Sofia. There are no popular flight routes from Portland to Sofia.
Search flight deals

  • How far is Portland to Sofia by plane?

    A flight from Portland to Sofia will travel around 5988.5 mi. 21h 10m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Portland Airport to Sofia Airport?

    Prices for flights from Portland Airport to Sofia Airport are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Sofia Airport?

  • How old do you have to be to fly from Portland Airport to Sofia Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Sofia Airport.

  • What documentation or ID do you need to fly to Sofia Airport?

    The travel and health documents required for your trip to Sofia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sofia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Portland to Sofia?

Best airlines flying from Portland to Sofia

Compare and see reviews for airlines that fly from Portland to Sofia with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $555Free CancellationRating
7.7
1,451 reviews
Search KLM flights
LufthansaPriceFrom $635Free CancellationRating
6.8
7,780 reviews
Search Lufthansa flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,281 reviews
Search United Airlines flights

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Bansko
Borovets
Velingrad
Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Sofia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Sofia. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Sofia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Sofia flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Sofia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Sofia.

I’m not ready to book a flight from Portland to Sofia right now. Can momondo alert me if prices change?

Price alerts on flights to Sofia from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
KLM
United Airlines
Lufthansa