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Cheap flights from Portland to Sofia from $407

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 7/25. 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
7:10 pm - 6:20 pm
PDX
-
SOF
37h 10m
2 stops
Air Canada Logo
6:25 am - 8:46 pm
SOF
-
PDX
24h 21m
2 stops
$736Air Canada
Mon, Nov 16 - Wed, Nov 25
Air Canada Logo
10:00 am - 6:10 pm
PDX
-
SOF
22h 10m
2 stops
Air Canada Logo
6:25 am - 8:46 pm
SOF
-
PDX
24h 21m
2 stops
$748Air Canada
Wed, Nov 11 - Wed, Nov 25
United Airlines Logo
11:00 pm - 6:20 pm
PDX
-
SOF
33h 20m
2 stops
United Airlines Logo
6:25 am - 11:12 pm
SOF
-
PDX
26h 47m
3 stops
$749United Airlines
Sat, Nov 14 - Thu, Nov 26
United Airlines Logo
11:00 pm - 6:20 pm
PDX
-
SOF
33h 20m
2 stops
United Airlines Logo
6:00 am - 11:12 pm
SOF
-
PDX
27h 12m
3 stops
$751United Airlines
Sat, Nov 14 - Wed, Nov 25
United Airlines Logo
9:00 am - 6:20 pm
PDX
-
SOF
23h 20m
3 stops
United Airlines Logo
6:00 am - 7:07 pm
SOF
-
PDX
23h 07m
2 stops
$753United Airlines
Tue, Nov 17 - Fri, Nov 27
Air Canada Logo
7:10 pm - 6:20 pm
PDX
-
SOF
37h 10m
2 stops
Air Canada Logo
6:00 am - 2:41 pm
SOF
-
PDX
42h 41m
2 stops
$768Air Canada
Mon, Nov 16 - Tue, Dec 1
Air Canada Logo
7:10 pm - 6:20 pm
PDX
-
SOF
37h 10m
2 stops
Air Canada Logo
1:55 pm - 2:41 pm
SOF
-
PDX
58h 46m
2 stops
$778Air Canada
Mon, Nov 16 - Mon, Nov 30
Air Canada Logo
7:10 pm - 1:25 pm
PDX
-
SOF
32h 15m
2 stops
Air Canada Logo
6:25 am - 9:26 am
SOF
-
PDX
37h 01m
2 stops
$779Air Canada
Sat, Nov 14 - Tue, Dec 1
Air Canada Logo
10:00 am - 1:25 pm
PDX
-
SOF
17h 25m
2 stops
Air Canada Logo
6:00 am - 6:31 pm
SOF
-
PDX
22h 31m
2 stops
$780Air Canada
Wed, Nov 11 - Tue, Dec 1
Lufthansa Logo
2:30 pm - 6:20 pm
PDX
-
SOF
17h 50m
2 stops
Lufthansa Logo
6:25 am - 11:12 pm
SOF
-
PDX
26h 47m
2 stops
$781Lufthansa
Wed, Nov 4 - Sun, Nov 8

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Lufthansa flights from Portland to Sofia

Our best Lufthansa deals on Portland to Sofia flight tickets
Lufthansa
Nov 4
PDX2:30 pmPortland
17h 50m
2 stops
SOF6:20 pmSofia
Nov 8
SOF6:25 amSofia
26h 47m
2 stops
PDX11:12 pmPortland
$781
Lufthansa
Aug 25
PDX10:50 amPortland
21h 50m
2 stops
SOF6:40 pmSofia
Sep 8
SOF6:10 amSofia
24h 55m
2 stops
PDX9:05 pmPortland
$831
Lufthansa
Aug 25
PDX2:27 pmPortland
22h 23m
2 stops
SOF10:50 pmSofia
Sep 8
SOF6:10 amSofia
24h 55m
2 stops
PDX9:05 pmPortland
$835

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
PDX1:23 pmPortland
43h 57m
2 stops
SOF7:20 pmSofia
Nov 8
SOF7:45 pmSofia
30h 05m
1 stop
PDX3:50 pmPortland
$885
British Airways
Nov 14
PDX1:47 pmPortland
18h 48m
2 stops
SOF6:35 pmSofia
Nov 29
SOF7:45 pmSofia
30h 05m
1 stop
PDX3:50 pmPortland
$936

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 20, 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

Mon 11/16

7:10 pm-6:20 pm

2 stops37h 10m

Sofia

Wed 11/25

6:25 am-8:46 pm

2 stops24h 21m

$736

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/11

10:00 am-6:10 pm

2 stops22h 10m

Sofia

Wed 11/25

6:25 am-8:46 pm

2 stops24h 21m

$748

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 11/14

11:00 pm-6:20 pm

2 stops33h 20m

Sofia

Thu 11/26

6:25 am-11:12 pm

3 stops26h 47m

$749

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 11/14

11:00 pm-6:20 pm

2 stops33h 20m

Sofia

Wed 11/25

6:00 am-11:12 pm

3 stops27h 12m

$751

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 11/17

9:00 am-6:20 pm

3 stops23h 20m

Sofia

Fri 11/27

6:00 am-7:07 pm

2 stops23h 07m

$753

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 11/16

7:10 pm-6:20 pm

2 stops37h 10m

Sofia

Tue 12/1

6:00 am-2:41 pm

2 stops42h 41m

$768

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 11/16

7:10 pm-6:20 pm

2 stops37h 10m

Sofia

Mon 11/30

1:55 pm-2:41 pm

2 stops58h 46m

$778

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 11/14

7:10 pm-1:25 pm

2 stops32h 15m

Sofia

Tue 12/1

6:25 am-9:26 am

2 stops37h 01m

$779
Quickest round-trip

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/11

10:00 am-1:25 pm

2 stops17h 25m

Sofia

Tue 12/1

6:00 am-6:31 pm

2 stops22h 31m

$780

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

2:30 pm-6:20 pm

2 stops17h 50m

Sofia

Sun 11/8

6:25 am-11:12 pm

2 stops26h 47m

$781

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 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 50m

Direct flights

None
The fastest flight from Portland to Sofia takes 17h 50m
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. 17h 50m 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
8,147 reviews
Search Lufthansa flights
United AirlinesPriceFrom $635Free CancellationRating
7.4
10,017 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