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Cheap flights from Portland to Sofia from $736

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Sofia departing on 12/6. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:00 am - 6:20 pm
PDX
-
SOF
25h 20m
2 stops
Air Canada Logo
6:25 am - 2:41 pm
SOF
-
PDX
18h 16m
2 stops
$736Air Canada
Sun, Dec 6 - Wed, Dec 9
Multiple Airlines Logo
2:30 pm - 10:45 pm
PDX
-
SOF
22h 15m
2 stops
Multiple Airlines Logo
6:25 am - 8:46 pm
SOF
-
PDX
24h 21m
2 stops
$782Multiple Airlines
Wed, Nov 4 - Sun, Nov 8
Multiple Airlines Logo
10:00 am - 6:10 pm
PDX
-
SOF
22h 10m
3 stops
Multiple Airlines Logo
6:25 am - 2:41 pm
SOF
-
PDX
18h 16m
2 stops
$797Multiple Airlines
Wed, Nov 4 - Sun, Nov 8
Multiple Airlines Logo
7:00 am - 10:45 pm
PDX
-
SOF
29h 45m
2 stops
Multiple Airlines Logo
2:00 pm - 9:26 am
SOF
-
PDX
53h 26m
2 stops
$798Multiple Airlines
Thu, Nov 19 - Wed, Dec 2
Multiple Airlines Logo
10:00 am - 1:25 pm
PDX
-
SOF
17h 25m
2 stops
Multiple Airlines Logo
6:25 am - 8:46 pm
SOF
-
PDX
24h 21m
2 stops
$815Multiple Airlines
Mon, Nov 16 - Sat, Nov 28
Air Canada Logo
10:00 am - 6:20 pm
PDX
-
SOF
22h 20m
3 stops
Air Canada Logo
6:25 am - 6:31 pm
SOF
-
PDX
22h 06m
2 stops
$821Air Canada
Wed, Nov 4 - Sun, Nov 8
Lufthansa Logo
8:15 am - 11:15 pm
PDX
-
SOF
29h 00m
2 stops
Lufthansa Logo
6:10 am - 10:45 pm
SOF
-
PDX
26h 35m
2 stops
$831Lufthansa
Sun, Aug 16 - Wed, Sep 2
Lufthansa Logo
2:27 pm - 10:50 pm
PDX
-
SOF
22h 23m
2 stops
Lufthansa Logo
6:10 am - 9:05 pm
SOF
-
PDX
24h 55m
2 stops
$835Lufthansa
Tue, Aug 25 - Tue, Sep 8
Air Canada Logo
7:00 am - 6:20 pm
PDX
-
SOF
25h 20m
2 stops
Air Canada Logo
6:00 am - 2:41 pm
SOF
-
PDX
18h 41m
3 stops
$840Air Canada
Thu, Nov 19 - Wed, Dec 2
United Airlines Logo
8:25 am - 12:10 pm
PDX
-
SOF
17h 45m
2 stops
United Airlines Logo
6:10 am - 9:05 pm
SOF
-
PDX
24h 55m
2 stops
$842United Airlines
Tue, Aug 25 - Tue, Sep 8

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Air Canada flights from Portland to Sofia

Our best Air Canada deals on Portland to Sofia flight tickets
Air Canada
Dec 6
PDX7:00 amPortland
25h 20m
2 stops
SOF6:20 pmSofia
Dec 9
SOF6:25 amSofia
18h 16m
2 stops
PDX2:41 pmPortland
$736
Air Canada
Nov 4
PDX10:00 amPortland
22h 20m
3 stops
SOF6:20 pmSofia
Nov 8
SOF6:25 amSofia
22h 06m
2 stops
PDX6:31 pmPortland
$821
Air Canada
Nov 19
PDX7:00 amPortland
25h 20m
2 stops
SOF6:20 pmSofia
Dec 2
SOF6:00 amSofia
18h 41m
3 stops
PDX2:41 pmPortland
$840

United Airlines flights from Portland to Sofia

Our best United Airlines deals on Portland to Sofia flight tickets
United Airlines
Aug 25
PDX8:25 amPortland
17h 45m
2 stops
SOF12:10 pmSofia
Sep 8
SOF6:10 amSofia
24h 55m
2 stops
PDX9:05 pmPortland
$842
United Airlines
Aug 25
PDX7:16 amPortland
25h 24m
2 stops
SOF6:40 pmSofia
Sep 9
SOF6:10 amSofia
24h 55m
2 stops
PDX9:05 pmPortland
$843
United Airlines
Aug 26
PDX2:27 pmPortland
22h 23m
2 stops
SOF10:50 pmSofia
Sep 8
SOF6:10 amSofia
24h 55m
2 stops
PDX9:05 pmPortland
$854

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 July 18, 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

Cheapest round-trip

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 12/6

7:00 am-6:20 pm

2 stops25h 20m

Sofia

Wed 12/9

6:25 am-2:41 pm

2 stops18h 16m

$736

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

2:30 pm-10:45 pm

2 stops22h 15m

Sofia

Sun 11/8

6:25 am-8:46 pm

2 stops24h 21m

$782
Quickest round-trip

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

10:00 am-6:10 pm

3 stops22h 10m

Sofia

Sun 11/8

6:25 am-2:41 pm

2 stops18h 16m

$797

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 11/19

7:00 am-10:45 pm

2 stops29h 45m

Sofia

Wed 12/2

2:00 pm-9:26 am

2 stops53h 26m

$798

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 11/16

10:00 am-1:25 pm

2 stops17h 25m

Sofia

Sat 11/28

6:25 am-8:46 pm

2 stops24h 21m

$815

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

10:00 am-6:20 pm

3 stops22h 20m

Sofia

Sun 11/8

6:25 am-6:31 pm

2 stops22h 06m

$821

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 8/16

8:15 am-11:15 pm

2 stops29h 00m

Sofia

Wed 9/2

6:10 am-10:45 pm

2 stops26h 35m

$831

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 8/25

2:27 pm-10:50 pm

2 stops22h 23m

Sofia

Tue 9/8

6:10 am-9:05 pm

2 stops24h 55m

$835

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 11/19

7:00 am-6:20 pm

2 stops25h 20m

Sofia

Wed 12/2

6:00 am-2:41 pm

3 stops18h 41m

$840

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 8/25

8:25 am-12:10 pm

2 stops17h 45m

Sofia

Tue 9/8

6:10 am-9:05 pm

2 stops24h 55m

$842

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 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 April. Flight prices, which tend to average around $595, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Sofia from Portland during March instead. Flights to Sofia in March, while not as cheap as those in April, still average around $684.

Can stopping save me money on Portland to Sofia flights?

You could potentially save up to 1% on your flight if you consider stops on a Portland to Sofia flight.

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

17h 45m

Direct flights

None
The fastest flight from Portland to Sofia takes 17h 45m
There are no direct flights from Portland to Sofia. There are no popular flight routes from Portland to Sofia.
Search flight deals

Frequently asked questions about flying from Portland to Sofia

  • How far is Portland to Sofia by plane?

    A flight from Portland to Sofia will travel around 5988.5 mi. 17h 45m 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
7.8
1,541 reviews
Search KLM flights
LufthansaPriceFrom $635Free CancellationRating
6.8
8,144 reviews
Search Lufthansa flights
United AirlinesPriceFrom $635Free CancellationRating
7.4
10,006 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