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Heidelberg

$310+ Cheap flights from Seattle (SEA) to Heidelberg, Germany

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FRA
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Heidelberg are usually found in January or February, booked 75 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from Seattle to Heidelberg

Keep the following information in mind while searching for Seattle to Heidelberg flight deals. Data was last updated March 31, 2025.

Round-trip from

$638
(Gotogate)

One-way from

$333
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$732
From Seattle/Tacoma Intl to Heidelberg
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One-way flight from Seattle/Tacoma Intl to Heidelberg
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Highest demand for flights based on searches. 0% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Seattle to Heidelberg

Cheapest flights from Seattle to Heidelberg
Explore the most affordable flight options available from Seattle to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:05 pmSEA - FRA
Nonstop10h 05mCondor
Tue 10/71:45 pmFRA - SEA
Nonstop10h 20mCondor
Deal found 3/30$635
This Condor deal was found by Cheapflights users on 3/29. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/118:00 amSEA - FRA
1 stop20h 45mMultiple Airlines
Thu 5/221:45 pmFRA - SEA
Nonstop10h 20mMultiple Airlines
Deal found 3/29$640
This Scandinavian Airlines deal was found by Cheapflights users on 3/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:20 pmSEA - FRA
1 stop13h 20mScandinavian Airlines
Tue 10/143:20 pmFRA - SEA
1 stop31h 40mScandinavian Airlines
Deal found 3/29$681
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2011:30 amSEA - FRA
2 stops22h 20mTAP AIR PORTUGAL
Wed 10/295:45 pmFRA - SEA
2 stops59h 34mTAP AIR PORTUGAL
Deal found 3/30$734
This Gotogate deal was found by Cheapflights users on 3/30. 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.
Mon 4/143:45 pmSEA - FRA
1 stop12h 15mIcelandair
Sun 4/275:10 pmFRA - SEA
1 stop33h 40mIcelandair
Deal found 3/30$767
This Lufthansa deal was found by Cheapflights users on 3/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:00 pmSEA - FRA
Nonstop10h 10mLufthansa
Wed 11/1910:20 amFRA - SEA
Nonstop10h 50mLufthansa
Deal found 3/30$821
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2511:50 pmSEA - FRA
1 stop22h 45mUnited Airlines
Fri 11/2110:20 amFRA - SEA
Nonstop10h 50mUnited Airlines
Deal found 3/30$825
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:15 pmSEA - FRA
2 stops31h 30mAir Canada
Tue 11/185:10 pmFRA - SEA
1 stop26h 30mAir Canada
Deal found 3/30$827

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Heidelberg 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 March 31, 2025.
Use the filters below to find and compare flights from Seattle to Heidelberg that are best for you.

Fly from

Seattle

Fly to

Heidelberg

Route

Depart

Return

Price

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Mon 9/22

5:05 pm-12:10 pm

Nonstop10h 05m

Frankfurt am Main

Tue 10/7

1:45 pm-3:05 pm

Nonstop10h 20m

$635

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 5/11

8:00 am-1:45 pm

1 stop20h 45m

Frankfurt am Main

Thu 5/22

1:45 pm-3:05 pm

Nonstop10h 20m

$640

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Wed 9/24

4:20 pm-2:40 pm

1 stop13h 20m

Frankfurt am Main

Tue 10/14

3:20 pm-2:00 pm

1 stop31h 40m

$681

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Mon 4/14

3:45 pm-1:00 pm

1 stop12h 15m

Frankfurt am Main

Sun 4/27

5:10 pm-5:50 pm

1 stop33h 40m

$767

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Mon 5/5

11:38 am-12:40 pm

2 stops40h 02m

Frankfurt am Main

Mon 5/19

6:05 am-10:28 am

2 stops37h 23m

$808

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Mon 4/14

7:10 pm-5:30 pm

1 stop37h 20m

Frankfurt am Main

Wed 4/30

11:25 am-5:15 pm

1 stop38h 50m

$863

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Tue 4/29

11:20 am-12:40 pm

1 stop16h 20m

$310

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Fri 4/11

5:05 pm-12:10 pm

Nonstop10h 05m

$354

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Thu 7/10

7:00 pm-4:05 pm

1 stop12h 05m

$374

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sat 6/7

7:05 am-10:00 am

1 stop17h 55m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 19 results
1
2

Best time to book a flight from Seattle to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg 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 Heidelberg

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Heidelberg. Price data was last updated on March 28, 2025.

The price you pay for your flight from Seattle to Heidelberg may vary depending on when you book. For the best chance of a lower fare, look to book 75 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 Heidelberg?

Currently, January is the cheapest month in which you can book a flight from Seattle to Heidelberg (average of $729). Flying from Seattle to Heidelberg in June is currently the most expensive (average of $1,079). 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 HE1?

Find hourly flight availability from Seattle to Heidelberg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

When flying from Seattle to Heidelberg, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Seattle to Heidelberg?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Heidelberg. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Heidelberg flight should consider departing on Sunday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Heidelberg

Explore weekly flight availability from Seattle to Heidelberg. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 31, 2025.

The most flights from SEA to HE1 are scheduled on a Monday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Heidelberg ranges from 1.6 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Heidelberg when rainfall is around 1.6 in.

Temperature in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Heidelberg, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Heidelberg

Get insights into the airlines that provide service to Heidelberg. 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 Heidelberg. Reviews last updated March 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Air New Zealand and KLM from Seattle to Heidelberg to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Air New Zealand
7.9
Good
456 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
KLM
7.8
Good
1,321 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Finnair
7.6
Good
1,267 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
SWISS
7.5
Good
1,570 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to Heidelberg?

    If you book a flight to Heidelberg from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 4 flights from Seattle/Tacoma Intl to Heidelberg per day from 11 different airlines.

  • What are the cheapest airlines to fly from Seattle to Heidelberg one-way?

    The cheapest airlines for a one-way flight from Seattle to Heidelberg are Condor ($354), Icelandair ($374), and WestJet ($411).

  • What are the most reliable airlines from Seattle to Heidelberg?

    The top 3 most reliable airlines when flying from Seattle to Heidelberg are Condor (75%), Alaska Airlines (75%) and Air Canada (74%).

  • What are the cheapest flights from Seattle to Heidelberg?

    On average you can expect to pay $2,032 for a flight from Seattle to Heidelberg. The cheapest flight overall is $403 while the most popular route, (Seattle/Tacoma Intl - Frankfurt am Main) is currently priced at $508.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Heidelberg 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 Heidelberg?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Heidelberg (average of $729). Flying from Seattle to Heidelberg in June is currently the most expensive (average of $1,079). 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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Top 10 airlines flying from Seattle to Heidelberg

Discover the top 10 airlines that operate flights from Seattle to Heidelberg. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$485Average$725FlexibilityNo cancel feeOn-time76%
CondorCheapest$519Average$832FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$567Average$739FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$583Average$794FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$584Average$881FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$628Average$891FlexibilityNo cancel feeOn-time76%
KLMCheapest$665Average$1,008FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$676Average$850FlexibilityNo cancel feeOn-time69%
DeltaCheapest$677Average$1,043FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$736Average$768FlexibilityNo cancel feeOn-time67%
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