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Cheap flights from Portland to Sofia from $339

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 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
10:10 am - 10:45 pmPDX-SOF
26h 35m2 stops
Lufthansa Logo
6:25 am - 6:48 pmSOF-PDX
22h 23m2 stops
$533Lufthansa
Find Deal
Mon, Dec 8 - Sat, Jan 31
United Airlines Logo
6:00 am - 6:20 pmPDX-SOF
26h 20m3 stops
United Airlines Logo
6:25 am - 6:48 pmSOF-PDX
22h 23m2 stops
$542United Airlines
Find Deal
Mon, Dec 8 - Sat, Jan 31
KLM Logo
1:25 pm - 2:05 pmPDX-SOF
14h 40m1 stop
KLM Logo
7:00 am - 8:27 pmSOF-PDX
23h 27m2 stops
$544KLM
Find Deal
Mon, Dec 8 - Sat, Jan 31
United Airlines Logo
7:45 pm - 10:45 pmPDX-SOF
41h 00m2 stops
United Airlines Logo
6:10 am - 10:53 pmSOF-PDX
26h 43m2 stops
$548United Airlines
Find Deal
Mon, Jan 5 - Fri, Jan 30
United Airlines Logo
7:45 pm - 10:45 pmPDX-SOF
41h 00m2 stops
United Airlines Logo
6:10 am - 12:31 amSOF-PDX
28h 21m3 stops
$549United Airlines
Find Deal
Mon, Jan 5 - Fri, Jan 30
United Airlines Logo
7:45 pm - 10:45 pmPDX-SOF
41h 00m2 stops
United Airlines Logo
6:05 am - 12:39 amSOF-PDX
28h 34m2 stops
$552United Airlines
Find Deal
Mon, Jan 5 - Mon, Jan 12
United Airlines Logo
7:45 pm - 10:45 pmPDX-SOF
41h 00m2 stops
United Airlines Logo
6:05 am - 12:18 pmSOF-PDX
40h 13m3 stops
$563United Airlines
Find Deal
Mon, Jan 5 - Mon, Jan 12
Multiple Airlines Logo
9:59 am - 2:05 pmPDX-SOF
18h 06m2 stops
Multiple Airlines Logo
7:00 am - 11:25 amSOF-PDX
14h 25m1 stop
$713Multiple Airlines
Find Deal
Mon, Jan 5 - Fri, Jan 30
Lufthansa Logo
3:41 pm - 10:45 pmPDX-SOF
22h 04m2 stops
Lufthansa Logo
1:45 pm - 8:49 pmSOF-PDX
40h 04m2 stops
$906Lufthansa
Find Deal
Thu, Mar 12 - Mon, Mar 16
Lufthansa Logo
3:41 pm - 10:45 pmPDX-SOF
22h 04m2 stops
Lufthansa Logo
7:05 pm - 8:49 pmSOF-PDX
34h 44m2 stops
$907Lufthansa
Find Deal
Thu, Mar 12 - Mon, Mar 16

Lufthansa flights from Portland to Sofia

Our best Lufthansa deals on Portland to Sofia flight tickets
Lufthansa
Dec 8
PDX10:10 amPortland
26h 35m
2 stops
SOF10:45 pmSofia
Jan 31
SOF6:25 amSofia
22h 23m
2 stops
PDX6:48 pmPortland
$533
Find similar
Lufthansa
Mar 12
PDX3:41 pmPortland
22h 04m
2 stops
SOF10:45 pmSofia
Mar 16
SOF1:45 pmSofia
40h 04m
2 stops
PDX8:49 pmPortland
$906
Find similar
Lufthansa
Mar 12
PDX3:41 pmPortland
22h 04m
2 stops
SOF10:45 pmSofia
Mar 16
SOF7:05 pmSofia
34h 44m
2 stops
PDX8:49 pmPortland
$907
Find similar

KLM flights from Portland to Sofia

Our best KLM deals on Portland to Sofia flight tickets
KLM
Dec 8
PDX1:25 pmPortland
14h 40m
1 stop
SOF2:05 pmSofia
Jan 31
SOF7:00 amSofia
23h 27m
2 stops
PDX8:27 pmPortland
$544
Find similar
KLM
Mar 12
PDX7:00 amPortland
22h 05m
2 stops
SOF2:05 pmSofia
Mar 16
SOF7:00 amSofia
14h 25m
1 stop
PDX12:25 pmPortland
$994
Find similar
KLM
Mar 12
PDX7:00 amPortland
22h 05m
2 stops
SOF2:05 pmSofia
Mar 16
SOF7:00 amSofia
14h 25m
1 stop
PDX12:25 pmPortland
$995
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 November 13, 2025.
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 12/8

10:10 am-10:45 pm

2 stops26h 35m

Sofia

Sat 1/31

6:25 am-6:48 pm

2 stops22h 23m

$533

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 12/8

6:00 am-6:20 pm

3 stops26h 20m

Sofia

Sat 1/31

6:25 am-6:48 pm

2 stops22h 23m

$542

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 12/8

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

Sat 1/31

7:00 am-8:27 pm

2 stops23h 27m

$544

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 1/5

7:45 pm-10:45 pm

2 stops41h 00m

Sofia

Fri 1/30

6:10 am-10:53 pm

2 stops26h 43m

$548

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 1/5

7:45 pm-10:45 pm

2 stops41h 00m

Sofia

Fri 1/30

6:10 am-12:31 am

3 stops28h 21m

$549

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 1/5

7:45 pm-10:45 pm

2 stops41h 00m

Sofia

Mon 1/12

6:05 am-12:39 am

2 stops28h 34m

$552

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 1/5

7:45 pm-10:45 pm

2 stops41h 00m

Sofia

Mon 1/12

6:05 am-12:18 pm

3 stops40h 13m

$563

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 1/5

9:59 am-2:05 pm

2 stops18h 06m

Sofia

Fri 1/30

7:00 am-11:25 am

1 stop14h 25m

$713

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 3/12

3:41 pm-10:45 pm

2 stops22h 04m

Sofia

Mon 3/16

1:45 pm-8:49 pm

2 stops40h 04m

$906

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 3/12

3:41 pm-10:45 pm

2 stops22h 04m

Sofia

Mon 3/16

7:05 pm-8:49 pm

2 stops34h 44m

$907

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 November. Flight prices, which tend to average around $682, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Sofia from Portland during October instead. Flights to Sofia in October, while not as cheap as those in November, still average around $748.

What is the cheapest day to depart on your flight to Sofia?

According to our data, Tuesday is the cheapest day to fly to Sofia from Portland. The lowest ticket price found for a Tuesday departure recently was $956. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Portland to Sofia on a Saturday will generally be more expensive and average around $1,199. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Sofia?

At noon is the cheapest time of day to fly from Portland to Sofia when you can find flight prices for as low as $1,012. Flying to Sofia at noon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Sofia, so prices are often more expensive at around $1,171 per ticket.

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

Direct flights

None
There are no direct flights from Portland to Sofia. There are no popular flight routes from Portland to Sofia.
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  • How far is Portland to Sofia by plane?

    A flight from Portland to Sofia will travel around 5988.5 mi. 14h 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
LufthansaPriceFrom $638Free CancellationRating
6.8
7,570 reviews
Search Lufthansa flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
Air CanadaPriceFrom $678Free CancellationRating
7.1
10,444 reviews
Search Air Canada flights
KLMPriceFrom $692Free CancellationRating
7.7
1,410 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
Air Canada