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Cheap flights from Portland to Sofia from $734

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 1/5. 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.
Multiple Airlines Logo
8:46 am - 6:20 pm
PDX
-
SOF
23h 34m
2 stops
Multiple Airlines Logo
6:00 am - 6:31 pm
SOF
-
PDX
22h 31m
2 stops
$734Multiple Airlines
Tue, Jan 5 - Tue, Jan 12
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
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
$798Multiple Airlines
Wed, Nov 4 - Sun, Nov 8
Multiple Airlines Logo
9:00 am - 11:15 pm
PDX
-
SOF
28h 15m
2 stops
Multiple Airlines Logo
6:25 am - 2:41 pm
SOF
-
PDX
18h 16m
2 stops
$801Multiple Airlines
Wed, Sep 9 - Thu, Nov 26
United Airlines Logo
4:07 pm - 6:40 pm
PDX
-
SOF
16h 33m
2 stops
United Airlines Logo
6:25 am - 11:12 pm
SOF
-
PDX
26h 47m
3 stops
$809United Airlines
Wed, Sep 9 - Thu, Nov 26
Air Canada Logo
10:00 am - 6:10 pm
PDX
-
SOF
22h 10m
3 stops
Air Canada Logo
6:00 am - 6:31 pm
SOF
-
PDX
22h 31m
3 stops
$821Air Canada
Wed, Nov 4 - Sun, Nov 8
Lufthansa Logo
10:50 am - 11:15 pm
PDX
-
SOF
26h 25m
2 stops
Lufthansa Logo
6:10 am - 9:05 pm
SOF
-
PDX
24h 55m
2 stops
$831Lufthansa
Sun, Aug 16 - Wed, Sep 2
United Airlines Logo
11:09 pm - 12:10 pm
PDX
-
SOF
27h 01m
2 stops
United Airlines Logo
6:10 am - 7:18 pm
SOF
-
PDX
23h 08m
2 stops
$842United Airlines
Tue, Sep 1 - Tue, Sep 15

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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 10m
3 stops
SOF6:10 pmSofia
Nov 8
SOF6:00 amSofia
22h 31m
3 stops
PDX6:31 pmPortland
$821

British Airways flights from Portland to Sofia

Our best British Airways deals on Portland to Sofia flight tickets
British Airways
Nov 4
PDX1:12 pmPortland
44h 08m
2 stops
SOF7:20 pmSofia
Nov 8
SOF7:45 pmSofia
30h 05m
1 stop
PDX3:50 pmPortland
$884
British Airways
Nov 4
PDX1:12 pmPortland
44h 08m
2 stops
SOF7:20 pmSofia
Nov 8
SOF7:45 pmSofia
30h 05m
1 stop
PDX3:50 pmPortland
$885
British Airways
Aug 16
PDX1:38 pmPortland
19h 42m
2 stops
SOF7:20 pmSofia
Sep 2
SOF9:25 pmSofia
30h 15m
1 stop
PDX5:40 pmPortland
$998

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 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

Cheapest round-trip

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 1/5

8:46 am-6:20 pm

2 stops23h 34m

Sofia

Tue 1/12

6:00 am-6:31 pm

2 stops22h 31m

$734

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

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

$798

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 9/9

9:00 am-11:15 pm

2 stops28h 15m

Sofia

Thu 11/26

6:25 am-2:41 pm

2 stops18h 16m

$801

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 9/9

4:07 pm-6:40 pm

2 stops16h 33m

Sofia

Thu 11/26

6:25 am-11:12 pm

3 stops26h 47m

$809

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

10:00 am-6:10 pm

3 stops22h 10m

Sofia

Sun 11/8

6:00 am-6:31 pm

3 stops22h 31m

$821

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 8/16

10:50 am-11:15 pm

2 stops26h 25m

Sofia

Wed 9/2

6:10 am-9:05 pm

2 stops24h 55m

$831

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 9/1

11:09 pm-12:10 pm

2 stops27h 01m

Sofia

Tue 9/15

6:10 am-7:18 pm

2 stops23h 08m

$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

20h 40m

Direct flights

None
The fastest flight from Portland to Sofia takes 20h 40m
There are no direct flights from Portland to Sofia. There are no popular flight routes from Portland to Sofia.
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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. 20h 40m 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
1,537 reviews
Search KLM flights
LufthansaPriceFrom $635Free CancellationRating
6.8
8,128 reviews
Search Lufthansa flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,980 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