PDX - SOF

$657 Find Cheap Flights from Portland to Sofia - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$627
Typical prices: $669-$1,104
Lufthansa, Air Canada
Wed 1/10Mon 1/29
PDX - SOF • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Portland and Sofia. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
May
Cheapest • 38% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg $925 (round-trip)
Frankfurt am Main (FRA)
Shortest trip • 17h 29m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Portland to Sofia (PDX-SOF)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Sofia

Sun, Jan 10 - Fri, Jan 29
Multiple Airlines Logo
2:35 pm - 6:20 pmPDX  Portland-SOF Sofia
17h 45m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:25 am - 6:31 pmSOF  Sofia-PDX Portland
22h 06m2 stops Frankfurt am Main Vancouver Intl
$627Multiple Airlines
Wed, Jan 13 - Fri, Jan 29
Lufthansa Logo
7:01 am - 6:20 pmPDX  Portland-SOF Sofia
25h 19m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
6:25 am - 10:43 pmSOF  Sofia-PDX Portland
26h 18m2 stops Frankfurt am Main San Francisco
$633Lufthansa
Tue, Jan 12 - Thu, Jan 28
SWISS Logo
1:39 pm - 3:25 pmPDX  Portland-SOF Sofia
39h 46m2 stops San Francisco Zurich
SWISS Logo
4:15 pm - 10:43 pmSOF  Sofia-PDX Portland
40h 28m2 stops Zurich San Francisco
$636SWISS
Tue, Jan 12 - Mon, Feb 1
SWISS Logo
1:39 pm - 3:25 pmPDX  Portland-SOF Sofia
39h 46m2 stops San Francisco Zurich
SWISS Logo
3:00 pm - 10:43 pmSOF  Sofia-PDX Portland
41h 43m2 stops Zurich San Francisco
$636SWISS
Mon, Jan 11 - Tue, Feb 2
Lufthansa Logo
3:30 pm - 10:55 pmPDX  Portland-SOF Sofia
21h 25m2 stops San Francisco Munich Franz Josef Strauss
Lufthansa Logo
2:00 pm - 6:20 pmSOF  Sofia-PDX Portland
38h 20m2 stops Munich Franz Josef Strauss San Francisco
$651Lufthansa
Mon, Jan 11 - Fri, Jan 29
Lufthansa Logo
3:30 pm - 10:55 pmPDX  Portland-SOF Sofia
21h 25m2 stops San Francisco Munich Franz Josef Strauss
Lufthansa Logo
2:00 pm - 6:20 pmSOF  Sofia-PDX Portland
38h 20m2 stops Munich Franz Josef Strauss San Francisco
$651Lufthansa
Wed, Nov 4 - Sun, Nov 8
Multiple Airlines Logo
2:34 pm - 6:20 pmPDX  Portland-SOF Sofia
17h 46m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:00 am - 8:46 pmSOF  Sofia-PDX Portland
24h 46m2 stops Munich Franz Josef Strauss Vancouver Intl
$657Multiple Airlines
Sat, Oct 24 - Sun, Nov 1
United Airlines Logo
11:59 pm - 10:55 pmPDX  Portland-SOF Sofia
37h 56m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
United Airlines Logo
6:00 am - 3:37 pmSOF  Sofia-PDX Portland
42h 37m2 stops Munich Franz Josef Strauss San Francisco
$666United Airlines
Sat, Jan 9 - Sat, Jan 30
United Airlines Logo
4:05 pm - 10:55 pmPDX  Portland-SOF Sofia
44h 50m3 stops Denver Intl Chicago O'Hare Intl Munich Franz Josef Strauss
United Airlines Logo
6:00 am - 9:40 amSOF  Sofia-PDX Portland
37h 40m2 stops Munich Franz Josef Strauss Denver Intl
$709United Airlines
Fri, Jan 15 - Sat, Jan 30
United Airlines Logo
3:30 pm - 10:55 pmPDX  Portland-SOF Sofia
45h 25m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
2:10 pm - 12:26 pmSOF  Sofia-PDX Portland
32h 16m2 stops Frankfurt am Main San Francisco
$722United Airlines
Booking Insights

Price, demand and travel trends for Portland to Sofia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Portland to Sofia with more confidence.

What's the cheapest day of the week to fly from Portland to Sofia?

Wednesday is the cheapest day of the week to fly from Portland to Sofia, it is 10% cheaper than the average day. Friday is the most expensive day with flight prices 53% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Portland to Sofia flights

Low season

January
Most popular time to fly with an average 7% increase in price.

When to book flights from Portland to Sofia

Are your dates flexible? Find out the best times to travel from Portland to Sofia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Portland to Sofia flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Portland to Sofia?

    Flights from Portland to Sofia usually depart from Portland (PDX) and arrive at Sofia (SOF).

  • What cabin classes can I book on flights from Portland to Sofia?

    Only Economy Class is available on flights from Portland to Sofia.

  • Which airports do connecting flights from Portland to Sofia pass through?

    One-stop flights from Portland to Sofia most commonly connect through:

    • Amsterdam Schiphol (AMS) - 84% of one-stop connections
    • London Heathrow (LHR) - 14% of one-stop connections
    • Frankfurt am Main (FRA) - 2% of one-stop connections

    Amsterdam Schiphol (AMS) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Portland to Sofia?

    Yes. Being flexible with your travel dates can save you up to 41% on the Portland to Sofia route. Wednesday is the cheapest departure day at $829 round-trip on average, while Friday is the most expensive at $1,398, a difference of $569. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Sofia?

    Some of the most popular sights in Sofia are Vasil Levski National Stadium, National Palace of Culture and Central Sofia Market Hall. These are among the most viewed places in Sofia on KAYAK.

  • How long is a flight from Portland to Sofia?

    A nonstop flight from Portland to Sofia takes 0h 00m, covering 5,985 miles.

  • Do I need a passport to fly from Portland to Sofia?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Portland to Sofia changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $627 to $1,583. That means the highest observed fare was about 3x higher than the lowest one.

  • How much time can I save by choosing a different layover airport from Portland to Sofia?

    Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 14h 33m, compared with 17h 29m via Frankfurt am Main (FRA) and 23h 43m via London Heathrow (LHR).

  • What is the time difference between Portland and Sofia?

    Sofia is 10 hours ahead of Portland (Eastern European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Sofia Airport (SOF)?

    Sofia Airport (SOF) hosts 5 major car rental companies, with daily rates starting from around $1 for economy cars. Top options include:
    • MEXRENTACAR
    • Easyrent
    • Top Rent a Car - Bulgaria
    • NU Car
    • Priceless

  • How much should I expect to pay for a Portland to Sofia flight?

    Round-trip flights from Portland to Sofia range from $669 to $1,104, with an average of $913 over the past 12 months. Anything below $669 counts as a good deal.

Your guide to booking Portland to Sofia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Friday. On this route, Wednesday flights average $829 - about $569 less than Friday (41% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Portland to Sofia trip for May. Fares historically average $567 round-trip in that month - typically $713 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Sofia Airport.
    - Hotel Premier Airport Sofia
    - ibis Sofia Airport
    - Avel Guest House

More options for your flight from Portland to Sofia

Complete your trip to Sofia with a hotel stay or car rental

Car rentals in Sofia
Hotels in Sofia
Vacations in Sofia