How does KAYAK find such low prices on flights from Washington to Sofia?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Sofia.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Sofia?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Sofia?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sofia with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Sofia?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sofia from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$330 CHEAP FLIGHTS from Washington to Sofia

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Cheap Flights from Washington to Sofia

Cheap flights from Washington to Sofia with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Last minute

Mon, Feb 1 - Sun, Feb 7

5:50 pm - 11:10 pmSEA Seattle/Tacoma Intl-SOF Sofia

19h 20m2 stops Frankfurt am Main Václav Havel Prague

4:00 pm - 3:55 pmSOF Sofia-SEA Seattle/Tacoma Intl

33h 55m3 stops Belgrade Nikola Tesla Václav Havel Prague Frankfurt am Main

$712Multiple Airlines

Tue, Mar 9 - Fri, Mar 19

8:00 am - 10:55 pmSEA Seattle/Tacoma Intl-SOF Sofia

28h 55m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:00 am - 2:00 pmSOF Sofia-SEA Seattle/Tacoma Intl

17h 00m1 stop Munich Franz Josef Strauss

$716Lufthansa

Tue, Mar 9 - Fri, Mar 19

7:00 am - 6:20 pmSEA Seattle/Tacoma Intl-SOF Sofia

25h 20m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 12:14 amSOF Sofia-SEA Seattle/Tacoma Intl

26h 49m2 stops Frankfurt am Main Chicago O'Hare Intl

$719Lufthansa

Sun, Jan 17 - Thu, Jan 21

10:52 am - 1:15 pmSEA Seattle/Tacoma Intl-SOF Sofia

16h 23m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 12:00 pmSOF Sofia-SEA Seattle/Tacoma Intl

15h 35m1 stop Frankfurt am Main

$721United Airlines

Sun, Jan 17 - Thu, Jan 21

8:08 am - 1:15 pmSEA Seattle/Tacoma Intl-SOF Sofia

19h 07m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:25 am - 11:15 pmSOF Sofia-SEA Seattle/Tacoma Intl

26h 50m2 stops Frankfurt am Main San Francisco

$730United Airlines

Sun, Apr 4 - Sun, Apr 11

3:15 pm - 11:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

21h 45m2 stops Vancouver Intl Munich Franz Josef Strauss

6:20 am - 6:23 pmSOF Sofia-SEA Seattle/Tacoma Intl

22h 03m2 stops Frankfurt am Main Vancouver Intl

$743Multiple Airlines

Sun, Apr 4 - Sun, Apr 11

6:50 pm - 6:40 pmSEA Seattle/Tacoma Intl-SOF Sofia

13h 50m1 stop Munich Franz Josef Strauss

6:20 am - 6:23 pmSOF Sofia-SEA Seattle/Tacoma Intl

22h 03m2 stops Frankfurt am Main Vancouver Intl

$743Lufthansa

Thu, Mar 4 - Mon, Mar 15

1:40 pm - 7:20 pmSEA Seattle/Tacoma Intl-SOF Sofia

19h 40m1 stop London Heathrow

5:15 pm - 12:25 pmSOF Sofia-SEA Seattle/Tacoma Intl

28h 10m1 stop London Heathrow

$752British Airways

Mon, Nov 9 - Thu, Nov 19

7:05 pm - 8:40 amSEA Seattle/Tacoma Intl-SOF Sofia

27h 35m1 stop Istanbul

4:00 pm - 5:10 pmSOF Sofia-SEA Seattle/Tacoma Intl

35h 10m1 stop Istanbul

$788Turkish Airlines

Thu, Nov 26 - Thu, Dec 3

7:05 pm - 8:40 amSEA Seattle/Tacoma Intl-SOF Sofia

27h 35m1 stop Istanbul

4:00 pm - 5:10 pmSOF Sofia-SEA Seattle/Tacoma Intl

35h 10m1 stop Istanbul

$788Turkish Airlines

Tue, Oct 20 - Fri, Nov 13

7:15 pm - 8:45 amSEA Seattle/Tacoma Intl-SOF Sofia

27h 30m1 stop Istanbul

9:40 pm - 5:10 pmSOF Sofia-SEA Seattle/Tacoma Intl

29h 30m1 stop Istanbul

$833Turkish Airlines

Mon, Oct 19 - Fri, Nov 13

7:15 pm - 8:45 amSEA Seattle/Tacoma Intl-SOF Sofia

27h 30m1 stop Istanbul

9:40 pm - 5:10 pmSOF Sofia-SEA Seattle/Tacoma Intl

29h 30m1 stop Istanbul

$833Turkish Airlines

Tue, Oct 20 - Tue, Nov 17

7:15 pm - 3:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

33h 45m1 stop Istanbul

4:00 pm - 5:10 pmSOF Sofia-SEA Seattle/Tacoma Intl

35h 10m1 stop Istanbul

$848Turkish Airlines

Mon, Oct 19 - Tue, Nov 17

7:15 pm - 3:00 pmSEA Seattle/Tacoma Intl-SOF Sofia

33h 45m1 stop Istanbul

9:40 pm - 5:10 pmSOF Sofia-SEA Seattle/Tacoma Intl

29h 30m1 stop Istanbul

$848Turkish Airlines

Sun, Oct 18 - Thu, Nov 12

7:00 pm - 10:30 pmSEA Seattle/Tacoma Intl-SOF Sofia

41h 30m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

10:00 pm - 5:00 pmSOF Sofia-SEA Seattle/Tacoma Intl

29h 00m1 stop London Stansted

$906Multiple Airlines

Sun, Oct 18 - Wed, Nov 11

7:00 pm - 10:30 pmSEA Seattle/Tacoma Intl-SOF Sofia

41h 30m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

6:00 am - 5:00 pmSOF Sofia-SEA Seattle/Tacoma Intl

21h 00m1 stop London Stansted

$930Multiple Airlines

Tue, Oct 20 - Fri, Nov 13

6:50 pm - 11:15 pmSEA Seattle/Tacoma Intl-SOF Sofia

18h 25m1 stop Munich Franz Josef Strauss

6:25 am - 7:03 pmSOF Sofia-SEA Seattle/Tacoma Intl

22h 38m2 stops Frankfurt am Main Chicago O'Hare Intl

$954Lufthansa

Mon, Oct 19 - Tue, Nov 17

7:15 pm - 6:40 pmSEA Seattle/Tacoma Intl-SOF Sofia

37h 25m2 stops Vancouver Intl Munich Franz Josef Strauss

6:00 am - 9:27 amSOF Sofia-SEA Seattle/Tacoma Intl

37h 27m2 stops Munich Franz Josef Strauss Vancouver Intl

$957Air Canada

Tue, Oct 20 - Fri, Nov 13

10:50 am - 1:05 pmSEA Seattle/Tacoma Intl-SOF Sofia

16h 15m2 stops Vancouver Intl Frankfurt am Main

6:25 am - 7:03 pmSOF Sofia-SEA Seattle/Tacoma Intl

22h 38m2 stops Frankfurt am Main Chicago O'Hare Intl

$959Lufthansa

Sun, Oct 18 - Wed, Nov 11

6:50 pm - 11:15 pmSEA Seattle/Tacoma Intl-SOF Sofia

18h 25m1 stop Munich Franz Josef Strauss

6:25 am - 12:00 pmSOF Sofia-SEA Seattle/Tacoma Intl

15h 35m1 stop Frankfurt am Main

$960Lufthansa

Low season	February
High season	May
Cheapest flight	$330

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly and prices are also 5% lower on average.

Flight from Seattle to Sofia

How does KAYAK find such low prices on flights from Washington to Sofia?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Sofia.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Sofia?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Sofia?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sofia with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Sofia?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sofia from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.