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Heidelberg

$290+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FRA
feb. 5 — feb. 121
jue. 2/5
jue. 2/12
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Heidelberg are usually found in January or November, booked 69 days in advance, depart on a Sunday or Monday and return on a Sunday

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 enero 6, 2026.

Round-trip from

$534
(Expedia)

One-way from

$290
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$640
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. 1% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 enero 6, 2026.

This Ticket deal was found by Cheapflights users on 1/6. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/85:40 pmSEA - FRA
Nonstop10h 10mCondor
jue. 1/221:55 pmFRA - SEA
Nonstop10h 45mCondor
Deal found 1/6$495
This Flightnetwork deal was found by Cheapflights users on 1/6. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/235:40 pmSEA - FRA
Nonstop10h 10mCondor
lun. 3/91:55 pmFRA - SEA
Nonstop10h 45mCondor
Deal found 1/6$526
This CheapOair deal was found by Cheapflights users on 1/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/285:40 pmSEA - FRA
Nonstop10h 05mCondor
mar. 5/52:15 pmFRA - SEA
Nonstop10h 25mCondor
Deal found 1/5$551
This Expedia deal was found by Cheapflights users on 1/5. 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.
mié. 5/65:40 pmSEA - FRA
Nonstop10h 05mCondor
mié. 5/202:15 pmFRA - SEA
Nonstop10h 25mCondor
Deal found 1/5$563
This Expedia deal was found by Cheapflights users on 1/6. 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.
lun. 4/205:40 pmSEA - FRA
Nonstop10h 05mCondor
vie. 5/82:15 pmFRA - SEA
Nonstop10h 25mCondor
Deal found 1/6$573
This Flighttix deal was found by Cheapflights users on 1/6. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/235:40 pmSEA - FRA
Nonstop10h 10mMultiple Airlines
lun. 3/911:15 amFRA - SEA
1 stop18h 57mMultiple Airlines
Deal found 1/6$575
This Gotogate deal was found by Cheapflights users on 1/6. 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.
jue. 1/295:40 pmSEA - FRA
Nonstop10h 10mCondor
jue. 2/121:55 pmFRA - SEA
Nonstop10h 45mCondor
Deal found 1/6$581
This Gotogate deal was found by Cheapflights users on 1/6. 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.
mar. 1/65:40 pmSEA - FRA
Nonstop10h 10mCondor
jue. 1/221:55 pmFRA - SEA
Nonstop10h 45mCondor
Deal found 1/6$585

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 enero 6, 2026.
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

jue. 2/19

5:40 pm-12:50 pm

Nonstop10h 10m

Frankfurt am Main

jue. 2/26

1:55 pm-3:40 pm

Nonstop10h 45m

$610

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

lun. 4/20

5:40 pm-12:45 pm

Nonstop10h 05m

Frankfurt am Main

vie. 5/8

11:40 am-7:46 pm

1 stop17h 06m

$640

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

lun. 4/20

11:45 am-2:35 pm

2 stops41h 50m

Frankfurt am Main

vie. 5/8

3:20 pm-12:22 am

2 stops42h 02m

$664

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

sáb. 2/7

5:40 pm-12:50 pm

Nonstop10h 10m

Frankfurt am Main

sáb. 2/21

11:15 am-10:12 pm

1 stop19h 57m

$720

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

lun. 2/23

2:00 pm-7:45 pm

2 stops20h 45m

Frankfurt am Main

lun. 3/9

7:55 am-11:21 pm

2 stops23h 26m

$738

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

sáb. 1/17

11:25 am-2:30 pm

2 stops18h 05m

Frankfurt am Main

lun. 2/2

10:20 am-10:25 pm

2 stops21h 05m

$759

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

lun. 2/9

5:40 pm-12:50 pm

Nonstop10h 10m

Frankfurt am Main

lun. 2/23

11:15 am-10:12 pm

1 stop19h 57m

$760

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

lun. 4/20

7:10 pm-10:05 am

1 stop29h 55m

Frankfurt am Main

vie. 5/8

6:50 am-5:15 pm

1 stop19h 25m

$820

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

vie. 5/29

5:40 pm-12:45 pm

Nonstop10h 05m

Frankfurt am Main

jue. 6/11

11:35 am-3:58 pm

1 stop13h 23m

$850

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

dom. 5/31

6:55 pm-7:55 pm

1 stop16h 00m

Frankfurt am Main

sáb. 8/1

10:55 am-5:10 pm

1 stop15h 15m

$874

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 21 results
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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 January 2, 2026.

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 69 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 $446). Flying from Seattle to Heidelberg in June is currently the most expensive (average of $725). 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 enero 6, 2026.

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.

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 enero 6, 2026.
Read reviews from past customers who have flown Alaska Airlines, United Airlines, and Icelandair from Seattle to Heidelberg. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,652 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,652 reviews
Alaska Airlines
8.0
Very good
11,652 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,137 reviews
Alaska Airlines
8.0
Very good
11,652 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Icelandair
7.1
Good
593 reviews
Alaska Airlines
8.0
Very good
11,652 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Lufthansa
6.8
Okay
7,689 reviews
Alaska Airlines
8.0
Very good
11,652 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Condor
6.4
Okay
397 reviews
Alaska Airlines
8.0
Very good
11,652 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 3 flights from Seattle/Tacoma Intl to Heidelberg per day from 8 different airlines.

  • How long is the flight from Seattle to Heidelberg?

    Condor can get you from Seattle to Heidelberg in just under 10h 05m. Your travel time will be generally consistent. There are 5089 mi between Seattle and Heidelberg. All flights are typically nonstop.

  • 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 Icelandair ($247), Scandinavian Airlines ($279), and Condor ($325).

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

    The top 3 most reliable airlines when flying from Seattle to Heidelberg are Air Canada (66%), United Airlines (66%) and Lufthansa (66%).

  • What are the cheapest flights from Seattle to Heidelberg?

    On average you can expect to pay $1,148 for a flight from Seattle to Heidelberg. The cheapest flight overall is $389 while the most popular route, (Seattle/Tacoma Intl - Frankfurt am Main) is currently priced at $551.

  • 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 $446). Flying from Seattle to Heidelberg in June is currently the most expensive (average of $725). 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 8 airlines flying from Seattle to Heidelberg

Discover the top 8 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 enero 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$466Average$663FlexibilityNo cancel feeOn-time76%
CondorCheapest$531Average$764FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$559Average$727FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$595Average$837FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$595Average$945FlexibilityNo cancel feeOn-time70%
DeltaCheapest$606Average$1,216FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$639Average$886FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$817Average$1,031FlexibilityNo cancel feeOn-time75%

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