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$398+ Cheap flights from Seattle (SEA) to Belgrade (BEG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BEG
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Belgrade Nikola Tesla are usually found in February or October, booked 44 days in advance, depart on a Monday or Wednesday and return on a Monday

Find flight deals from Seattle to Belgrade

Cheapest flights from Seattle to Belgrade
Explore the most affordable flight options available from Seattle to Belgrade. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This Mytrip deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:10 pmSEA - BEG
1 stop16h 55mMultiple Airlines
Wed 1/149:40 amBEG - SEA
2 stops21h 36mMultiple Airlines
Deal found 11/18$534
This Mytrip deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:10 pmSEA - BEG
1 stop16h 55mMultiple Airlines
Thu 1/226:50 amBEG - SEA
2 stops24h 26mMultiple Airlines
Deal found 11/18$546
This KLM deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:05 pmSEA - BEG
1 stop23h 20mKLM
Wed 1/145:50 pmBEG - SEA
1 stop27h 00mKLM
Deal found 11/18$548
This Booking.com deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:52 amSEA - BEG
2 stops21h 13mLufthansa
Thu 1/225:50 pmBEG - SEA
2 stops34h 26mLufthansa
Deal found 11/18$561
This Gotogate deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:10 pmSEA - BEG
1 stop16h 55mMultiple Airlines
Tue 2/106:10 amBEG - SEA
2 stops25h 06mMultiple Airlines
Deal found 11/18$738
This Expedia deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:00 pmSEA - BEG
1 stop14h 05mMultiple Airlines
Tue 2/106:10 amBEG - SEA
2 stops25h 06mMultiple Airlines
Deal found 11/18$746
This Cheapflightsfares deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:00 amSEA - BEG
2 stops25h 05mLufthansa
Tue 2/106:10 amBEG - SEA
2 stops21h 04mLufthansa
Deal found 11/18$747
This KLM deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/23:05 pmSEA - BEG
1 stop35h 50mKLM
Thu 1/226:05 amBEG - SEA
1 stop14h 45mKLM
Deal found 11/18$748
This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:10 amSEA - BEG
2 stops31h 15mDelta
Thu 1/226:05 amBEG - SEA
1 stop14h 45mDelta
Deal found 11/18$752
This Expedia deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/12:00 pmSEA - BEG
1 stop13h 50mMultiple Airlines
Thu 1/228:05 pmBEG - SEA
2 stops34h 07mMultiple Airlines
Deal found 11/18$753

Cheap flight deals from Seattle to Belgrade

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Belgrade (BEG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 18, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$534
(Mytrip)

One-way from

$398
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,066
Provider with most accurate pricing for Seattle/Tacoma Intl-Belgrade Nikola Tesla flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Belgrade Nikola Tesla flights.
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From Seattle/Tacoma Intl to Belgrade Nikola Tesla
Search Deals
One-way flight from Seattle/Tacoma Intl to Belgrade Nikola Tesla
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($382 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Belgrade 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, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
Use the filters below to find and compare flights from Seattle to Belgrade that are best for you.

Fly from

Seattle

Fly to

Belgrade

Route

Depart

Return

Price

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 12/31

3:05 pm-11:25 pm

1 stop23h 20m

Belgrade Nikola Tesla

Thu 1/22

6:05 am-11:50 am

1 stop14h 45m

$548

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 12/31

3:05 pm-11:25 pm

1 stop23h 20m

Belgrade Nikola Tesla

Wed 1/14

5:50 pm-11:50 am

1 stop27h 00m

$548

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 1/7

12:35 pm-7:10 pm

2 stops21h 35m

Belgrade Nikola Tesla

Wed 1/14

9:40 am-10:16 pm

2 stops21h 36m

$557

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 12/31

10:52 am-5:05 pm

2 stops21h 13m

Belgrade Nikola Tesla

Thu 1/22

5:50 pm-7:16 pm

2 stops34h 26m

$561

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 12/31

8:10 am-11:30 pm

2 stops30h 20m

Belgrade Nikola Tesla

Thu 1/22

6:50 am-9:31 am

3 stops35h 41m

$592

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Tue 12/2

2:00 pm-1:05 pm

1 stop14h 05m

Belgrade Nikola Tesla

Tue 2/10

6:10 am-10:16 pm

2 stops25h 06m

$746

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Mon 12/1

3:05 pm-11:25 pm

1 stop23h 20m

Belgrade Nikola Tesla

Thu 1/22

6:05 am-11:50 am

1 stop14h 45m

$748

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Tue 12/2

3:05 pm-11:55 am

1 stop35h 50m

Belgrade Nikola Tesla

Thu 1/22

6:05 am-11:50 am

1 stop14h 45m

$748

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Sat 12/6

3:05 pm-11:10 pm

1 stop23h 05m

Belgrade Nikola Tesla

Tue 2/10

6:05 am-11:40 am

1 stop14h 35m

$748

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 12/3

3:05 pm-11:55 am

1 stop35h 50m

Belgrade Nikola Tesla

Tue 2/10

12:35 pm-11:40 am

1 stop32h 05m

$748

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 20 results
1
2

Compare providers for flights from Seattle to Belgrade

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Belgrade in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Belgrade flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Seattle-Belgrade flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Seattle-Belgrade flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Belgrade flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Belgrade flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Belgrade

Have a flexible travel schedule? Discover the best time to fly to Belgrade from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Belgrade

How far ahead should I book a flight from Seattle to Belgrade?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Belgrade. Price data was last updated on November 14, 2025.

The price you pay for your flight from Seattle to Belgrade may vary depending on when you book. For the best chance of a lower fare, look to book 44 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Belgrade?

Currently, December is the cheapest month in which you can book a flight from Seattle to Belgrade (average of $524). Flying from Seattle to Belgrade in June is currently the most expensive (average of $1,098). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BEG?

Find hourly flight availability from Seattle to Belgrade. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

It’s typically best to fly out from Seattle to Belgrade in the evening. Doing so could potentially save you 18% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Belgrade

Get insights into the airlines that provide service to Belgrade. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belgrade. Reviews last updated November 18, 2025.
See what other customers who have flown with KLM, Turkish Airlines, and Lufthansa from Seattle to Belgrade have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,411 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Turkish Airlines
7.3
Good
4,047 reviews
KLM
7.7
Good
1,411 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,576 reviews
KLM
7.7
Good
1,411 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Belgrade. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Belgrade?

    For as low as $561, KLM can have you in Belgrade from Seattle in 21h 13m. There are 5666 mi between Seattle and Belgrade. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to Belgrade round-trip?

    According to our current data, Lufthansa ($643), KLM ($688), and Turkish Airlines ($751) offers the cheapest pricing from Seattle to Belgrade. These flights start at 34% lower than the current average price 3 months from now.

  • Can I find deals for flights from Seattle to Belgrade that include hotel bookings?

    Yes. In addition to deals on Seattle to Belgrade flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Belgrade?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Belgrade.

  • Can I find deals for business class flights from Seattle to Belgrade?

    Yes. Cheapflights offers flight deals from Seattle to Belgrade by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Belgrade?

    Currently, December is the cheapest month in which you can book a flight from Seattle to Belgrade (average of $524). Flying from Seattle to Belgrade in June is currently the most expensive (average of $1,098). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Belgrade

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Belgrade flights

Top 3 airlines flying from Seattle to Belgrade

Discover the top 3 airlines that operate flights from Seattle to Belgrade. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$643Average$952FlexibilityNo cancel feeOn-time76%
KLMCheapest$688Average$851FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$751Average$1,032FlexibilityNo cancel feeOn-time77%

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