$415 Cheap Flights from St. Louis (STL) to Hannover (HAJ)

View $415 flight on Sat, Feb 21, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Hannover Airport (HAJ)

Cheap Flights from St. Louis to Hannover (STL-HAJ)

Prices were available within the past 7 days and start at $415 for one-way flights and $551 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Jan 20 - Mon, Jan 26
STL
St. Louis
HAJ
Hannover
$551 Roundtrip, found 5 days ago
$551
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, Jan 20 from St. Louis to Hannover, returning Mon, Jan 26, priced at $551 found 5 days ago
United
Sun, Jan 18 - Wed, Jan 28
STL
St. Louis
HAJ
Hannover
$586 Roundtrip, found 5 days ago
$586
Roundtrip
found 5 days ago
Select United flight, departing Sun, Jan 18 from St. Louis to Hannover, returning Wed, Jan 28, priced at $586 found 5 days ago
United
Sun, Jan 18 - Mon, Jan 26
STL
St. Louis
HAJ
Hannover
$592 Roundtrip, found 5 days ago
$592
Roundtrip
found 5 days ago
Select United flight, departing Sun, Jan 18 from St. Louis to Hannover, returning Mon, Jan 26, priced at $592 found 5 days ago
United
Wed, Jan 21 - Wed, Jan 28
STL
St. Louis
HAJ
Hannover
$594 Roundtrip, found 5 days ago
$594
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jan 21 from St. Louis to Hannover, returning Wed, Jan 28, priced at $594 found 5 days ago
United
Sun, Jan 18 - Tue, Jan 27
STL
St. Louis
HAJ
Hannover
$595 Roundtrip, found 5 days ago
$595
Roundtrip
found 5 days ago
Select United flight, departing Sun, Jan 18 from St. Louis to Hannover, returning Tue, Jan 27, priced at $595 found 5 days ago
United
Tue, Jan 20 - Mon, Jan 26
STL
St. Louis
HAJ
Hannover
$599 Roundtrip, found 5 days ago
$599
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jan 20 from St. Louis to Hannover, returning Mon, Jan 26, priced at $599 found 5 days ago
United
Fri, Jan 23 - Sun, Jan 25
STL
St. Louis
HAJ
Hannover
$600 Roundtrip, found 5 days ago
$600
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 23 from St. Louis to Hannover, returning Sun, Jan 25, priced at $600 found 5 days ago
Delta
Mon, Jan 19 - Tue, Jan 27
STL
St. Louis
HAJ
Hannover
$601 Roundtrip, found 5 days ago
$601
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Jan 19 from St. Louis to Hannover, returning Tue, Jan 27, priced at $601 found 5 days ago
Lufthansa
Sun, Jan 4 - Sat, Jan 24
STL
St. Louis
HAJ
Hannover
$603 Roundtrip, found 1 day ago
$603
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Sun, Jan 4 from St. Louis to Hannover, returning Sat, Jan 24, priced at $603 found 1 day ago
Air Canada
Tue, Jan 20 - Mon, Jan 26
STL
St. Louis
HAJ
Hannover
$610 Roundtrip, found 5 days ago
$610
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Jan 20 from St. Louis to Hannover, returning Mon, Jan 26, priced at $610 found 5 days ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ) cost?
Snag a cheap one-way flight from $415 or cheap return flight from $551 from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ)?
Planning your getaway for January is a great way to save, as it's the cheapest month for flights between STL and HAJ. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest STL to HAJ flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ)?
You'll have to catch a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from STL to HAJ?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ) route, fly before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ) last-minute?
Booking your flight from STL to HAJ shortly before your getaway is typically more expensive. However, if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to HAJ flight and hotel package?
You'll typically save money by securing a STL to HAJ flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your ideal flights and accommodations, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Hannover Airport (HAJ)?
In most instances, you can reschedule or cancel your STL to HAJ flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further details, head to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Hannover
Airlines serving
Air Canada, Austrian Airlines, British Airways, Lufthansa, Scandinavian Airlines
Roundtrip price
$551
Distance
4531 mi

Book with confidence

St. Louis to Hannover Flights

The cheapest times to fly from St. Louis to Hannover

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Hannover are during the month of January. You can find some of the cheapest flights from St. Louis to Hannover with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Hannover

Sunday is one of the best days to book for cheap flights from St. Louis to Hannover: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Hannover

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Hannover in 2025. You can also book with separate airlines for your outbound and return journeys, from $415 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Hannover flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Hannover airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Hannover Flights

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*Available to One Key members.