￥59,050 Cheap Flights to Southwest Illinois, IL

View ￥59,050 flight on Wed, Jan 21, 2026Opens in a new window

Popular airlines

  • Contour Airlines

    Contour Airlines

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Southwest Illinois?

Prices were available within the past 7 days and start at ￥59,050 for one-way flights and ￥92,150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jan 22 - Wed, Feb 4
HND
Tokyo
STL
St. Louis
￥92,150 Roundtrip, found 20 hours ago
￥92,150
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Thu, Jan 22 from Tokyo to St. Louis, returning Wed, Feb 4, priced at ￥92,150 found 20 hours ago
Delta
Thu, May 28 - Sun, Jun 7
HND
Tokyo
STL
St. Louis
￥92,360 Roundtrip, found 2 hours ago
￥92,360
Roundtrip
found 2 hours ago
Select Delta flight, departing Thu, May 28 from Tokyo to St. Louis, returning Sun, Jun 7, priced at ￥92,360 found 2 hours ago
United
Thu, Jan 22 - Wed, Feb 4
HND
Tokyo
STL
St. Louis
￥96,650 Roundtrip, found 20 hours ago
￥96,650
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Jan 22 from Tokyo to St. Louis, returning Wed, Feb 4, priced at ￥96,650 found 20 hours ago
Air Canada
Fri, Apr 17 - Mon, Apr 27
NRT
Tokyo
STL
St. Louis
￥118,800 Roundtrip, found 2 days ago
￥118,800
Roundtrip
found 2 days ago
Select Air Canada flight, departing Fri, Apr 17 from Tokyo to St. Louis, returning Mon, Apr 27, priced at ￥118,800 found 2 days ago
Alaska Airlines
Thu, Feb 19 - Sat, Mar 7
NRT
Tokyo
STL
St. Louis
￥124,840 Roundtrip, found 4 days ago
￥124,840
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Feb 19 from Tokyo to St. Louis, returning Sat, Mar 7, priced at ￥124,840 found 4 days ago

Frequently asked questions

How do I find cheap flights to Southwest Illinois that have flexible change policies?
By using our neat "No change fee" filter, that's how. Just enter your travel details, click "Search," then tick the checkbox directly underneath the "Flexible change policies" heading (top left-hand side of your screen). Expedia makes it a cinch to find flexible and affordable tickets to Southwest Illinois.
Which airlines fly to Southwest Illinois?
When you're ready to reserve your ticket to or near Southwest Illinois, these popular carriers are waiting to welcome you on board:

  • Southwest Airlines - 2,214 flights to or near Southwest Illinois each month, including 2,214 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 971 flights to or near Southwest Illinois each month, including 789 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • Delta Air Lines - 728 flights to or near Southwest Illinois each month, including 650 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to Southwest Illinois?
In the last seven days, ￥92,150 was the best price for a flight to Southwest Illinois. If you'd love to save even more, book in advance and be flexible with your travel dates. Search for your flight to Southwest Illinois, then see prices for similar time frames by clicking on the "flexible dates" link above.
How much is a flight to Southwest Illinois?
In the last seven days, round-trip tickets to Southwest Illinois sold for as little as ￥92,150 and reached a maximum price of ￥124,840. For one-way trips departing from Tokyo (HND), the lowest amount paid during this time was only ￥59,050.
What are the most popular airports to fly into in Southwest Illinois?
Choosing your airport comes down to factors including your airline, budget and where you plan to explore. These are your choices in Southwest Illinois:

  • Lambert-St. Louis Intl. Airport (STL) - 4,902 flights per month.
  • Evansville Regional Airport (EVV) - 277 flights per month.

How much is a plane ticket to Southwest Illinois?
In the last seven days, plane tickets to Southwest Illinois ranged between ￥92,150 and ￥124,840. Prices depend on multiple things, particularly the time of departure, carrier, cabin class and when the fare is booked.
What months are the cheapest to book a flight to Southwest Illinois?
The most affordable month to score a terrific deal to Southwest Illinois is February, while the priciest month is December. Avoid this month if you're looking to save money.

Book with confidence

Expedia is the largest online travel agency which means that Expedia have access to cheap airline tickets. So make sure you check Expedia regularly for these bargain flights because the cheapest airline ticket deals sell out fast.

If you're looking to save even more, find additional savings by combining your Southwest Illinois flight with a hotel to create a personalized bargain travel package. Early birds can discover fantastic savings by booking in advance, while last minute travelers can enjoy great last minute deals. With Expedia, there’s no shortage of options to save even more on your Southwest Illinois trip!

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
￥92,150

Trending flights to Southwest Illinois

Prices were available within the past 7 days and start at ￥59,050 for one-way flights and ￥92,150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jan 22 - Wed, Feb 4
HND
Tokyo
STL
St. Louis
￥92,150 Roundtrip, found 20 hours ago
￥92,150
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Thu, Jan 22 from Tokyo to St. Louis, returning Wed, Feb 4, priced at ￥92,150 found 20 hours ago

Explore a world of travel with Expedia

*Available to Expedia members.