$591 Cheap Flights from Delhi (DEL) to St. Louis (STL)

View $591 flight on Fri, Nov 21, 2025Opens in a new window

Popular airlines from Indira Gandhi International Airport (DEL) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Delhi to St. Louis (DEL-STL)

Prices were available within the past 7 days and start at $591 for one-way flights and $831 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Fri, Dec 19 - Sun, Jan 11
DEL
Delhi
STL
St. Louis
$831 Roundtrip, found 5 days ago
$831
Roundtrip
found 5 days ago
Select British Airways flight, departing Fri, Dec 19 from Delhi to St. Louis, returning Sun, Jan 11, priced at $831 found 5 days ago
British Airways
Thu, Feb 5 - Thu, Mar 19
DEL
Delhi
STL
St. Louis
$848 Roundtrip, found 3 days ago
$848
Roundtrip
found 3 days ago
Select British Airways flight, departing Thu, Feb 5 from Delhi to St. Louis, returning Thu, Mar 19, priced at $848 found 3 days ago
British Airways
Fri, Dec 19 - Sun, Jan 11
DEL
Delhi
STL
St. Louis
$856 Roundtrip, found 5 days ago
$856
Roundtrip
found 5 days ago
Select British Airways flight, departing Fri, Dec 19 from Delhi to St. Louis, returning Sun, Jan 11, priced at $856 found 5 days ago
British Airways
Thu, Feb 5 - Thu, Mar 19
DEL
Delhi
STL
St. Louis
$979 Roundtrip, found 3 days ago
$979
Roundtrip
found 3 days ago
Select British Airways flight, departing Thu, Feb 5 from Delhi to St. Louis, returning Thu, Mar 19, priced at $979 found 3 days ago
British Airways
Sat, Dec 13 - Mon, Jan 12
DEL
Delhi
STL
St. Louis
$982 Roundtrip, found 4 days ago
$982
Roundtrip
found 4 days ago
Select British Airways flight, departing Sat, Dec 13 from Delhi to St. Louis, returning Mon, Jan 12, priced at $982 found 4 days ago
British Airways
Fri, Feb 13 - Sun, Mar 1
DEL
Delhi
STL
St. Louis
$1,002 Roundtrip, found 3 days ago
$1,002
Roundtrip
found 3 days ago
Select British Airways flight, departing Fri, Feb 13 from Delhi to St. Louis, returning Sun, Mar 1, priced at $1,002 found 3 days ago
Virgin Atlantic
Thu, Dec 25 - Mon, Feb 2
DEL
Delhi
STL
St. Louis
$1,105 Roundtrip, found 6 days ago
$1,105
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Thu, Dec 25 from Delhi to St. Louis, returning Mon, Feb 2, priced at $1,105 found 6 days ago
Finnair
Sun, Dec 14 - Fri, Jan 9
DEL
Delhi
STL
St. Louis
$1,117 Roundtrip, found 9 hours ago
$1,117
Roundtrip
found 9 hours ago
Select Finnair flight, departing Sun, Dec 14 from Delhi to St. Louis, returning Fri, Jan 9, priced at $1,117 found 9 hours ago
KLM
Wed, Dec 17 - Wed, Jan 14
DEL
Delhi
STL
St. Louis
$1,145 Roundtrip, found 5 days ago
$1,145
Roundtrip
found 5 days ago
Select KLM flight, departing Wed, Dec 17 from Delhi to St. Louis, returning Wed, Jan 14, priced at $1,145 found 5 days ago
Air Canada
Wed, Nov 5 - Mon, Dec 8
DEL
Delhi
STL
St. Louis
$1,156 Roundtrip, found 4 days ago
$1,156
Roundtrip
found 4 days ago
Select Air Canada flight, departing Wed, Nov 5 from Delhi to St. Louis, returning Mon, Dec 8, priced at $1,156 found 4 days ago

Frequently asked questions

How much does a flight from Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL) cost?
Get a cheap one-way flight from $591 or cheap return flight from $831 from Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from DEL to STL is December, when demand is low. Off-peak season is typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline that'll fly you from DEL to STL, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DEL to STL?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various 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 Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL)?
To avoid potential delays on the Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Later flights have a 22% higher chance of being 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 Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute bookings from DEL to STL are generally more expensive. To lock in the lowest prices, start searching for flights as early as possible. That said, if you can play around with your travel dates, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a DEL to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking a DEL to STL flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place takes the hassle out of planning your trip. Simply secure your flights and select from our wide range of hotels, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Indira Gandhi Intl. Airport (DEL) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your DEL to STL flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Origin airport
Indira Gandhi Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Cathay Pacific, Delta, Finnair, Japan Airlines, KLM, Korean Air, Lufthansa, Qatar Airways, United, Virgin Atlantic
Roundtrip price
$831
Distance
7716 mi

Book with confidence

Delhi to St. Louis Flights

The cheapest times to fly from Delhi to St. Louis

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 Delhi to St. Louis are during the month of December. You can find some of the cheapest flights from Delhi to St. Louis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Delhi to St. Louis: 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 Delhi to St. Louis

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 Delhi to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $591 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 Delhi to St. Louis 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 Delhi to St. Louis 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.

 

Delhi to St. Louis Flights

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*Available to One Key members.