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Cheap flights from Portland to Sofia from $757

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 12/13. 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
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.
United Airlines Logo
5:35 am - 10:45 pm
PDX
-
SOF
31h 10m
2 stops
United Airlines Logo
6:00 am - 12:43 am
SOF
-
PDX
28h 43m
2 stops
$757United Airlines
Sun, Dec 13 - Wed, Dec 23
United Airlines Logo
11:10 pm - 6:20 pm
PDX
-
SOF
33h 10m
2 stops
United Airlines Logo
6:25 am - 8:49 pm
SOF
-
PDX
24h 24m
2 stops
$785United Airlines
Sat, Nov 21 - Thu, Dec 3
Lufthansa Logo
3:40 pm - 10:45 pm
PDX
-
SOF
21h 05m
2 stops
Lufthansa Logo
6:25 am - 9:02 pm
SOF
-
PDX
24h 37m
2 stops
$788Lufthansa
Wed, Nov 4 - Sun, Nov 8
Lufthansa Logo
8:40 am - 10:45 pm
PDX
-
SOF
28h 05m
2 stops
Lufthansa Logo
6:00 am - 6:09 pm
SOF
-
PDX
22h 09m
2 stops
$792Lufthansa
Wed, Nov 4 - Sun, Nov 8
Lufthansa Logo
3:40 pm - 10:45 pm
PDX
-
SOF
21h 05m
2 stops
Lufthansa Logo
6:25 am - 10:27 pm
SOF
-
PDX
26h 02m
2 stops
$793Lufthansa
Wed, Nov 4 - Sun, Nov 8
Multiple Airlines Logo
9:00 am - 11:15 pm
PDX
-
SOF
28h 15m
2 stops
Multiple Airlines Logo
6:20 am - 7:06 pm
SOF
-
PDX
22h 46m
2 stops
$836Multiple Airlines
Sun, Sep 13 - Fri, Oct 9
United Airlines Logo
8:25 am - 6:40 pm
PDX
-
SOF
24h 15m
2 stops
United Airlines Logo
6:10 am - 7:06 pm
SOF
-
PDX
22h 56m
2 stops
$836United Airlines
Tue, Sep 1 - Tue, Oct 6
United Airlines Logo
8:40 am - 11:15 pm
PDX
-
SOF
28h 35m
2 stops
United Airlines Logo
6:20 am - 9:31 am
SOF
-
PDX
37h 11m
2 stops
$836United Airlines
Sun, Sep 13 - Wed, Oct 7
Multiple Airlines Logo
4:07 pm - 6:40 pm
PDX
-
SOF
40h 33m
2 stops
Multiple Airlines Logo
3:40 pm - 7:11 pm
SOF
-
PDX
37h 31m
2 stops
$879Multiple Airlines
Sat, Sep 19 - Mon, Sep 28
British Airways Logo
1:23 pm - 7:20 pm
PDX
-
SOF
43h 57m
2 stops
British Airways Logo
7:45 pm - 3:50 pm
SOF
-
PDX
30h 05m
1 stop
$889British Airways
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
PDX3:40 pmPortland
21h 05m
2 stops
SOF10:45 pmSofia
Nov 8
SOF6:25 amSofia
24h 37m
2 stops
PDX9:02 pmPortland
$788
Lufthansa
Nov 4
PDX8:40 amPortland
28h 05m
2 stops
SOF10:45 pmSofia
Nov 8
SOF6:00 amSofia
22h 09m
2 stops
PDX6:09 pmPortland
$792
Lufthansa
Nov 4
PDX3:40 pmPortland
21h 05m
2 stops
SOF10:45 pmSofia
Nov 8
SOF6:25 amSofia
26h 02m
2 stops
PDX10:27 pmPortland
$793

United Airlines flights from Portland to Sofia

Our best United Airlines deals on Portland to Sofia flight tickets
United Airlines
Dec 13
PDX5:35 amPortland
31h 10m
2 stops
SOF10:45 pmSofia
Dec 23
SOF6:00 amSofia
28h 43m
2 stops
PDX12:43 amPortland
$757
United Airlines
Nov 21
PDX11:10 pmPortland
33h 10m
2 stops
SOF6:20 pmSofia
Dec 3
SOF6:25 amSofia
24h 24m
2 stops
PDX8:49 pmPortland
$785
United Airlines
Sep 1
PDX8:25 amPortland
24h 15m
2 stops
SOF6:40 pmSofia
Oct 9
SOF6:20 amSofia
18h 31m
2 stops
PDX2:51 pmPortland
$836

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 28, 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 12/13

5:35 am-10:45 pm

2 stops31h 10m

Sofia

Wed 12/23

6:00 am-12:43 am

2 stops28h 43m

$757

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 11/21

11:10 pm-6:20 pm

2 stops33h 10m

Sofia

Thu 12/3

6:25 am-8:49 pm

2 stops24h 24m

$785
Quickest round-trip

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

3:40 pm-10:45 pm

2 stops21h 05m

Sofia

Sun 11/8

6:25 am-9:02 pm

2 stops24h 37m

$788

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

8:40 am-10:45 pm

2 stops28h 05m

Sofia

Sun 11/8

6:00 am-6:09 pm

2 stops22h 09m

$792

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

3:40 pm-10:45 pm

2 stops21h 05m

Sofia

Sun 11/8

6:25 am-10:27 pm

2 stops26h 02m

$793

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 9/13

9:00 am-11:15 pm

2 stops28h 15m

Sofia

Fri 10/9

6:20 am-7:06 pm

2 stops22h 46m

$836

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 9/1

8:25 am-6:40 pm

2 stops24h 15m

Sofia

Tue 10/6

6:10 am-7:06 pm

2 stops22h 56m

$836

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sun 9/13

8:40 am-11:15 pm

2 stops28h 35m

Sofia

Wed 10/7

6:20 am-9:31 am

2 stops37h 11m

$836

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 9/19

4:07 pm-6:40 pm

2 stops40h 33m

Sofia

Mon 9/28

3:40 pm-7:11 pm

2 stops37h 31m

$879

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/4

1:23 pm-7:20 pm

2 stops43h 57m

Sofia

Sun 11/8

7:45 pm-3:50 pm

1 stop30h 05m

$889

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?

Prices are currently low for flights on this route.

Typical prices usually range from $934 to $1,104.
The lowest price recently found on this route was $757.

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

25h 24m

Direct flights

None
The fastest flight from Portland to Sofia takes 25h 24m
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. 25h 24m 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
1,550 reviews
Search KLM flights
LufthansaPriceFrom $638Free CancellationRating
6.8
8,163 reviews
Search Lufthansa flights
United AirlinesPriceFrom $666Free CancellationRating
7.4
10,049 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