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Cheap flights from Portland to Sofia from $245

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 5/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Lufthansa Logo
7:45 am - 10:45 pm
PDX
-
SOF
29h 00m2 stops
Lufthansa Logo
6:05 am - 6:30 pm
SOF
-
PDX
22h 25m2 stops
$522Lufthansa
Mon, Feb 2 - Fri, Feb 13
Lufthansa Logo
10:56 am - 1:15 pm
PDX
-
SOF
16h 19m2 stops
Lufthansa Logo
2:25 pm - 12:34 am
SOF
-
PDX
20h 09m2 stops
$534Lufthansa
Fri, Feb 20 - Wed, Feb 25
Multiple Airlines Logo
7:00 am - 2:05 pm
PDX
-
SOF
21h 05m2 stops
Multiple Airlines Logo
7:00 am - 11:25 am
SOF
-
PDX
14h 25m1 stop
$535Multiple Airlines
Mon, Feb 2 - Fri, Feb 13
Lufthansa Logo
7:00 am - 6:20 pm
PDX
-
SOF
25h 20m2 stops
Lufthansa Logo
7:05 pm - 6:30 pm
SOF
-
PDX
33h 25m2 stops
$536Lufthansa
Sun, Feb 1 - Mon, Feb 9
KLM Logo
1:25 pm - 2:05 pm
PDX
-
SOF
14h 40m1 stop
KLM Logo
7:00 am - 11:25 am
SOF
-
PDX
14h 25m1 stop
$537KLM
Fri, Feb 20 - Wed, Feb 25
KLM Logo
7:00 am - 2:05 pm
PDX
-
SOF
21h 05m2 stops
KLM Logo
7:00 am - 11:25 am
SOF
-
PDX
14h 25m1 stop
$541KLM
Fri, Feb 20 - Wed, Feb 25
Multiple Airlines Logo
7:05 pm - 6:20 pm
PDX
-
SOF
37h 15m3 stops
Multiple Airlines Logo
6:05 am - 6:30 pm
SOF
-
PDX
22h 25m2 stops
$542Multiple Airlines
Mon, Feb 2 - Fri, Feb 13
United Airlines Logo
5:05 am - 10:45 pm
PDX
-
SOF
31h 40m2 stops
United Airlines Logo
6:10 am - 12:35 am
SOF
-
PDX
27h 25m2 stops
$547United Airlines
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
7:00 am - 6:20 pm
PDX
-
SOF
26h 20m2 stops
Multiple Airlines Logo
6:05 am - 9:38 pm
SOF
-
PDX
24h 33m2 stops
$551Multiple Airlines
Fri, Mar 13 - Wed, Mar 18
Multiple Airlines Logo
7:00 am - 1:40 pm
PDX
-
SOF
20h 40m2 stops
Multiple Airlines Logo
2:00 pm - 8:15 am
SOF
-
PDX
52h 15m2 stops
$554Multiple Airlines
Sat, Feb 28 - Sat, Mar 7

United Airlines flights from Portland to Sofia

Our best United Airlines deals on Portland to Sofia flight tickets
United Airlines
Mar 5
PDX5:05 amPortland
31h 40m
2 stops
SOF10:45 pmSofia
Mar 9
SOF6:10 amSofia
27h 25m
2 stops
PDX12:35 amPortland
$547
Find similar
United Airlines
May 12
PDX5:30 amPortland
27h 10m
3 stops
SOF6:40 pmSofia
May 28
SOF6:30 amSofia
20h 24m
2 stops
PDX4:54 pmPortland
$600
Find similar
United Airlines
Feb 1
PDX1:24 pmPortland
18h 56m
3 stops
SOF6:20 pmSofia
Feb 9
SOF6:10 amSofia
26h 43m
2 stops
PDX10:53 pmPortland
$619
Find similar

Air Europa flights from Portland to Sofia

Our best Air Europa deals on Portland to Sofia flight tickets
Air Europa
May 18
PDX1:05 pmPortland
14h 55m
1 stop
SOF2:00 pmSofia
May 29
SOF7:00 amSofia
14h 10m
1 stop
PDX11:10 amPortland
$663
Find similar
Air Europa
May 13
PDX1:05 pmPortland
14h 55m
1 stop
SOF2:00 pmSofia
May 28
SOF7:00 amSofia
14h 10m
1 stop
PDX11:10 amPortland
$712
Find similar
Air Europa
May 15
PDX5:30 amPortland
22h 30m
2 stops
SOF2:00 pmSofia
May 29
SOF7:00 amSofia
14h 10m
1 stop
PDX11:10 amPortland
$727
Find similar

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 January 4, 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

Mon 2/2

7:45 am-10:45 pm

2 stops29h 00m

Sofia

Fri 2/13

6:05 am-6:30 pm

2 stops22h 25m

$522

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 2/20

10:56 am-1:15 pm

2 stops16h 19m

Sofia

Wed 2/25

2:25 pm-12:34 am

2 stops20h 09m

$534

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 2/2

7:00 am-2:05 pm

2 stops21h 05m

Sofia

Fri 2/13

7:00 am-11:25 am

1 stop14h 25m

$535

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 2/1

7:00 am-6:20 pm

2 stops25h 20m

Sofia

Mon 2/9

7:05 pm-6:30 pm

2 stops33h 25m

$536

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 2/20

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

Wed 2/25

7:00 am-11:25 am

1 stop14h 25m

$537

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 2/20

7:00 am-2:05 pm

2 stops21h 05m

Sofia

Wed 2/25

7:00 am-11:25 am

1 stop14h 25m

$541

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 2/2

7:05 pm-6:20 pm

3 stops37h 15m

Sofia

Fri 2/13

6:05 am-6:30 pm

2 stops22h 25m

$542

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 3/5

5:05 am-10:45 pm

2 stops31h 40m

Sofia

Mon 3/9

6:10 am-12:35 am

2 stops27h 25m

$547

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 3/13

7:00 am-6:20 pm

2 stops26h 20m

Sofia

Wed 3/18

6:05 am-9:38 pm

2 stops24h 33m

$551

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 2/28

7:00 am-1:40 pm

2 stops20h 40m

Sofia

Sat 3/7

2:00 pm-8:15 am

2 stops52h 15m

$554

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sofia from

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 cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Portland is in February. Flight prices, which tend to average around $662, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Sofia from Portland during October instead. Flights to Sofia in October, while not as cheap as those in February, still average around $748.

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

18h 20m

Direct flights

None
The fastest flight from Portland to Sofia takes 18h 20m
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. 18h 20m 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
LufthansaPriceFrom $635Free CancellationRating
6.8
7,676 reviews
Search Lufthansa flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,136 reviews
Search United Airlines flights
KLMPriceFrom $692Free CancellationRating
7.7
1,435 reviews
Search KLM 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