Cheap Flights to St. Louis County from ￥20,590

Popular airlines to St. Louis County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Alaska Airlines

    Alaska Airlines

  • Frontier Airlines

    Frontier Airlines

  • Air Canada

    Air Canada

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How much is the cheapest flight to St. Louis County?

Prices were available within the past 7 days and start at ￥20,590 for one-way flights and ￥42,150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Nov 24 - Wed, Dec 3
ONT
Ontario
STL
St. Louis
￥42,150 Roundtrip, found 19 hours ago
￥42,150
Roundtrip
found 19 hours ago
Select Delta flight, departing Mon, Nov 24 from Ontario to St. Louis, returning Wed, Dec 3, priced at ￥42,150 found 19 hours ago
American Airlines
Thu, Nov 6 - Wed, Nov 12
LAX
Los Angeles
STL
St. Louis
￥44,100 Roundtrip, found 2 days ago
￥44,100
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Nov 6 from Los Angeles to St. Louis, returning Wed, Nov 12, priced at ￥44,100 found 2 days ago
American Airlines
Thu, Nov 13 - Mon, Nov 17
YYZ
Toronto
STL
St. Louis
￥55,066 Roundtrip, found 7 hours ago
￥55,066
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Thu, Nov 13 from Toronto to St. Louis, returning Mon, Nov 17, priced at ￥55,066 found 7 hours ago
United
Mon, Nov 24 - Wed, Dec 3
LAX
Los Angeles
STL
St. Louis
￥59,560 Roundtrip, found 19 hours ago
￥59,560
Roundtrip
found 19 hours ago
Select United flight, departing Mon, Nov 24 from Los Angeles to St. Louis, returning Wed, Dec 3, priced at ￥59,560 found 19 hours ago
Air Canada
Fri, Nov 14 - Mon, Nov 17
YYZ
Toronto
STL
St. Louis
￥62,390 Roundtrip, found 7 hours ago
￥62,390
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Fri, Nov 14 from Toronto to St. Louis, returning Mon, Nov 17, priced at ￥62,390 found 7 hours ago
WestJet
Thu, Nov 13 - Sun, Nov 16
YYZ
Toronto
STL
St. Louis
￥81,305 Roundtrip, found 7 hours ago
￥81,305
Roundtrip
found 7 hours ago
Select WestJet flight, departing Thu, Nov 13 from Toronto to St. Louis, returning Sun, Nov 16, priced at ￥81,305 found 7 hours ago
United
Thu, Dec 25 - Wed, Dec 31
GVA
Geneva
STL
St. Louis
￥97,780 Roundtrip, found 1 day ago
￥97,780
Roundtrip
found 1 day ago
Select United flight, departing Thu, Dec 25 from Geneva to St. Louis, returning Wed, Dec 31, priced at ￥97,780 found 1 day ago
Lufthansa
Tue, Dec 23 - Thu, Jan 1
GVA
Geneva
STL
St. Louis
￥100,830 Roundtrip, found 1 day ago
￥100,830
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, Dec 23 from Geneva to St. Louis, returning Thu, Jan 1, priced at ￥100,830 found 1 day ago
United
Mon, Oct 13 - Mon, Oct 20
HND
Tokyo
STL
St. Louis
￥106,140 Roundtrip, found 5 days ago
￥106,140
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 13 from Tokyo to St. Louis, returning Mon, Oct 20, priced at ￥106,140 found 5 days ago
American Airlines
Fri, Nov 21 - Tue, Nov 25
NRT
Tokyo
STL
St. Louis
￥107,220 Roundtrip, found 3 hours ago
￥107,220
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Nov 21 from Tokyo to St. Louis, returning Tue, Nov 25, priced at ￥107,220 found 3 hours ago

2025 年 5 月 13 日、新規開設*

ハワイアン航空はこのたび、東京の成田国際空港からシアトルへの直行便を新たに開設し、毎日運航することを発表しました。

豊かな緑に包まれたその景観から「エメラルド シティ」と呼ばれるシアトルは、美しい自然と現代的な快適さをともに楽しみたい人の旅行先として人気の都市です。

シアトルを象徴するタワー、スペース ニードルからの素晴らしい眺めを堪能し、パイク プレイス マーケットの知られざる魅力や誰もが知る見どころを探訪して、ケリー パークで一息ついたら、夕暮れ時の街並みを眺めましょう。ピュージェット湾でのホエールウォッチングもおすすめです。

シアトルの空港は米国国内線のハブ空港でもあるため、米国各地への旅もさらにスムーズになります。

*政府の承認が必要となります。

Frequently asked questions

How do I find cheap flights to St. Louis County that have flexible change policies?
When it comes to traveling these days, flexibility is key. That's why we have a "No change fee" search function to help you track down cheap and flexible flights to St. Louis County. It's near the top left of your screen directly underneath the "Flexible change policies" heading.
Which airlines fly to St. Louis County?
When you're ready to lock in your seat to or near St. Louis County, these leading airlines are waiting to welcome you aboard:

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

How can I find cheap tickets to St. Louis County?
An excellent strategy for scoring cheap fares is to be flexible with your travel dates. Begin with searching for your flight to St. Louis County, then click on the "flexible dates" box to see prices for nearby days. Want another good tip? Book ahead of time. To give you an idea of costs, ￥42,150 was the best price for a flight to St. Louis County in the last seven days.
How much is a flight to St. Louis County?
There were plenty of budget-friendly fares up for grabs in the last seven days, with the price of a return ticket to St. Louis County ranging between ￥42,150 and ￥107,220. Many lucky vacationers nabbed one-way flights from Ontario (ONT) for as low as ￥20,590.
What are the most popular airports to fly into in St. Louis County?
The principal gateway to St. Louis County, around 4,902 flights taxi into Lambert-St. Louis Intl. Airport (STL) each month. Search for an amazing deal, lock in your fare and get set to explore this fantastic region.
How much is a plane ticket to St. Louis County?
In the last seven days, flights to St. Louis County cost between ￥42,150 and ￥107,220. Prices depend on a number of things, particularly the departure time, airline, cabin class and how early you make your booking.
What months are the cheapest to book a flight to St. Louis County?
Reserve your ticket in February to enjoy the lowest-priced flights to St. Louis County. The festive month of December is usually the most expensive time to purchase an airfare.

Trending flights to St. Louis County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Oct 13 - Mon, Oct 20
HND
Tokyo
STL
St. Louis
￥106,140 Roundtrip, found 5 days ago
￥106,140
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 13 from Tokyo to St. Louis, returning Mon, Oct 20, priced at ￥106,140 found 5 days ago
*Available to Expedia members.