$456 Cheap Flights from St. Louis (STL) to Hannover (HAJ)

View $456 flight on Mon, Nov 17, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $456 for one-way flights and $694 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Dec 30 - Thu, Jan 15
STL
St. Louis
HAJ
Hannover
$694 Roundtrip, found 1 day ago
$694
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Dec 30 from St. Louis to Hannover, returning Thu, Jan 15, priced at $694 found 1 day ago
British Airways
Mon, Oct 27 - Wed, Nov 5
STL
St. Louis
HAJ
Hannover
$733 Roundtrip, found 4 days ago
$733
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Oct 27 from St. Louis to Hannover, returning Wed, Nov 5, priced at $733 found 4 days ago
British Airways
Tue, Dec 30 - Tue, Jan 13
STL
St. Louis
HAJ
Hannover
$734 Roundtrip, found 1 day ago
$734
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Dec 30 from St. Louis to Hannover, returning Tue, Jan 13, priced at $734 found 1 day ago
Scandinavian Airlines
Mon, Nov 10 - Fri, Nov 14
STL
St. Louis
HAJ
Hannover
$735 Roundtrip, found 3 days ago
$735
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Mon, Nov 10 from St. Louis to Hannover, returning Fri, Nov 14, priced at $735 found 3 days ago
British Airways
Tue, Dec 30 - Sat, Jan 17
STL
St. Louis
HAJ
Hannover
$744 Roundtrip, found 1 day ago
$744
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Dec 30 from St. Louis to Hannover, returning Sat, Jan 17, priced at $744 found 1 day ago
British Airways
Thu, Feb 26 - Tue, Mar 3
STL
St. Louis
HAJ
Hannover
$745 Roundtrip, found 4 hours ago
$745
Roundtrip
found 4 hours ago
Select British Airways flight, departing Thu, Feb 26 from St. Louis to Hannover, returning Tue, Mar 3, priced at $745 found 4 hours ago
British Airways
Sun, Oct 26 - Fri, Nov 21
STL
St. Louis
HAJ
Hannover
$747 Roundtrip, found 6 hours ago
$747
Roundtrip
found 6 hours ago
Select British Airways flight, departing Sun, Oct 26 from St. Louis to Hannover, returning Fri, Nov 21, priced at $747 found 6 hours ago
American Airlines
Mon, Jan 5 - Tue, Jan 13
STL
St. Louis
HAJ
Hannover
$864 Roundtrip, found 1 day ago
$864
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Jan 5 from St. Louis to Hannover, returning Tue, Jan 13, priced at $864 found 1 day ago
United
Sun, Jan 4 - Wed, Jan 14
STL
St. Louis
HAJ
Hannover
$869 Roundtrip, found 1 day ago
$869
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 4 from St. Louis to Hannover, returning Wed, Jan 14, priced at $869 found 1 day ago
Lufthansa
Fri, Jan 2 - Fri, Jan 16
STL
St. Louis
HAJ
Hannover
$877 Roundtrip, found 1 day ago
$877
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Jan 2 from St. Louis to Hannover, returning Fri, Jan 16, priced at $877 found 1 day ago
Flights from St. Louis (STL) to Hannover (HAJ)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Hannover
Airlines serving
American Airlines, Austrian Airlines, British Airways, Delta, KLM, Lufthansa, United
Roundtrip price
$694
Distance
4531 mi

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 December. 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 $456 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.

 

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 $456 or cheap return flight from $694 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 December 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.

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*Available to One Key members.