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Heidelberg

$303+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FRA
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 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 July 2, 2025.

Round-trip from

$612
(oojo)

One-way from

$303
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$923
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. 2% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 2, 2025.

This oojo deal was found by Cheapflights users on 7/1. 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.
Sun 8/105:05 pmSEA - FRA
Nonstop10h 05mCondor
Wed 8/271:45 pmFRA - SEA
Nonstop10h 20mCondor
Deal found 7/1$612
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Sun 8/1012:46 amSEA - FRA
2 stops24h 29mAer Lingus
Wed 8/2710:55 amFRA - SEA
1 stop15h 55mAer Lingus
Deal found 7/2$617
This Icelandair deal was found by Cheapflights users on 7/2. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:45 pmSEA - FRA
1 stop12h 15mIcelandair
Sun 9/282:00 pmFRA - SEA
1 stop15h 40mIcelandair
Deal found 7/2$618
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Mon 8/117:35 pmSEA - FRA
1 stop16h 10mMultiple Airlines
Wed 8/2710:55 amFRA - SEA
1 stop15h 55mMultiple Airlines
Deal found 7/2$631
This Scandinavian Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 9/144:20 pmSEA - FRA
1 stop13h 20mScandinavian Airlines
Wed 9/248:30 pmFRA - SEA
2 stops34h 31mScandinavian Airlines
Deal found 7/2$641

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 July 2, 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

Sun 8/10

5:05 pm-12:10 pm

Nonstop10h 05m

Frankfurt am Main

Wed 8/27

1:45 pm-3:05 pm

Nonstop10h 20m

$612

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 8/10

12:46 am-10:15 am

2 stops24h 29m

Frankfurt am Main

Wed 8/27

10:55 am-5:50 pm

1 stop15h 55m

$617

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 8/24

3:45 pm-1:00 pm

1 stop12h 15m

Frankfurt am Main

Sun 9/7

5:10 pm-5:50 pm

1 stop33h 40m

$621

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Thu 8/14

11:31 am-12:40 pm

1 stop16h 09m

Frankfurt am Main

Fri 8/29

11:50 am-5:50 pm

1 stop15h 00m

$635

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Mon 8/18

4:00 pm-2:40 pm

1 stop13h 40m

Frankfurt am Main

Mon 8/25

8:30 pm-10:25 pm

2 stops34h 55m

$681

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Tue 8/5

7:20 am-8:10 am

1 stop15h 50m

Frankfurt am Main

Tue 8/26

5:35 pm-8:41 pm

1 stop36h 06m

$688

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Wed 9/24

7:00 pm-9:30 am

2 stops29h 30m

$303

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Thu 7/31

7:00 pm-4:10 pm

1 stop12h 10m

$322

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sat 9/13

6:30 am-10:20 pm

2 stops30h 50m

$332

SeattleFrankfurt am Main

SEA - FRA

SEAFRA

Seattle/Tacoma Intl

Sun 8/10

7:35 pm-10:15 am

1 stop29h 40m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 13 results
1
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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 June 27, 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 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 $729). Flying from Seattle to Heidelberg in June is currently the most expensive (average of $1,090). 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 July 2, 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. Saturday 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 July 2, 2025.

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

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 July 2, 2025.
Read reviews from past customers who have flown Scandinavian Airlines, Air Canada, and Aer Lingus 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.
Scandinavian Airlines
7.3
Good
1,415 reviews

Food

6.6

Boarding

7.6

Comfort

7.2

Entertainment

6.6

Overall

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Scandinavian Airlines
7.3
Good
1,415 reviews
Scandinavian Airlines
7.3
Good
1,415 reviews

Food

6.6

Boarding

7.6

Comfort

7.2

Entertainment

6.6

Overall

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Air Canada
7.1
Good
9,669 reviews
Scandinavian Airlines
7.3
Good
1,415 reviews

Food

6.6

Boarding

7.6

Comfort

7.2

Entertainment

6.6

Overall

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Aer Lingus
7.1
Good
1,141 reviews
Scandinavian Airlines
7.3
Good
1,415 reviews

Food

6.6

Boarding

7.6

Comfort

7.2

Entertainment

6.6

Overall

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
TAP AIR PORTUGAL
7.1
Good
1,912 reviews
Scandinavian Airlines
7.3
Good
1,415 reviews

Food

6.6

Boarding

7.6

Comfort

7.2

Entertainment

6.6

Overall

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Icelandair
7.0
Good
514 reviews
Scandinavian Airlines
7.3
Good
1,415 reviews

Food

6.6

Boarding

7.6

Comfort

7.2

Entertainment

6.6

Overall

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

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 Icelandair ($321), TAP AIR PORTUGAL ($332), and Scandinavian Airlines ($371).

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

    The top 3 most reliable airlines when flying from Seattle to Heidelberg are Condor (72%), Alaska Airlines (72%) and Air Canada (70%).

  • What are the cheapest flights from Seattle to Heidelberg?

    On average you can expect to pay $1,841 for a flight from Seattle to Heidelberg. The cheapest flight overall is $370 while the most popular route, (Seattle/Tacoma Intl - Frankfurt am Main) is currently priced at $476.

  • 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 $1,090). 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

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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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$466Average$704FlexibilityNo cancel feeOn-time76%
CondorCheapest$518Average$782FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$555Average$880FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$559Average$724FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$595Average$836FlexibilityNo cancel feeOn-time76%
DeltaCheapest$606Average$1,017FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$630Average$718FlexibilityNo cancel feeOn-time71%
KLMCheapest$665Average$1,062FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$672Average$873FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$737Average$768FlexibilityNo cancel feeOn-time67%

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