Cheap Flights to Northeast Missouri from HK$691

View HK$691 flight on Fri, 23 Jan 2026Opens in a new window

Popular airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Alaska Airlines

    Alaska Airlines

  • Air Canada

    Air Canada

  • notification illustration

    Be in the know

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

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Northeast Missouri

Prices were available within the past 7 days and start at HK$691 for one-way flights and HK$1,381 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 23 Jan - Tue, 3 Feb
SEA
Seattle
STL
St. Louis
HK$1,381 Return, found 3 days ago
HK$1,381
Return
found 3 days ago
Select Delta flight, departing Fri, 23 Jan from Seattle to St. Louis, returning Tue, 3 Feb, priced at HK$1,381 found 3 days ago
Delta
Fri, 23 Jan - Fri, 6 Feb
SEA
Seattle
STL
St. Louis
HK$1,543 Return, found 3 days ago
HK$1,543
Return
found 3 days ago
Select Delta flight, departing Fri, 23 Jan from Seattle to St. Louis, returning Fri, 6 Feb, priced at HK$1,543 found 3 days ago
Alaska Airlines
Tue, 20 Jan - Wed, 4 Feb
SEA
Seattle
STL
St. Louis
HK$1,692 Return, found 3 days ago
HK$1,692
Return
found 3 days ago
Select Alaska Airlines flight, departing Tue, 20 Jan from Seattle to St. Louis, returning Wed, 4 Feb, priced at HK$1,692 found 3 days ago
American Airlines
Fri, 23 Jan - Fri, 6 Feb
SEA
Seattle
STL
St. Louis
HK$1,898 Return, found 3 days ago
HK$1,898
Return
found 3 days ago
Select American Airlines flight, departing Fri, 23 Jan from Seattle to St. Louis, returning Fri, 6 Feb, priced at HK$1,898 found 3 days ago
United
Sat, 14 Feb - Sat, 28 Feb
SEA
Seattle
STL
St. Louis
HK$2,210 Return, found 3 days ago
HK$2,210
Return
found 3 days ago
Select United flight, departing Sat, 14 Feb from Seattle to St. Louis, returning Sat, 28 Feb, priced at HK$2,210 found 3 days ago

Frequently asked questions

How do I find cheap flights to Northeast Missouri that have flexible change policies?
We understand that travel schedules can change from one minute to the next, so locking in a flexible airfare with Expedia is always a wise idea. Simply check the "No change fee" box directly under the "Flexible change policies" filter. Your affordable, flexible flight to Northeast Missouri is only a few clicks away.
Which airlines fly to Northeast Missouri?
Settle on your travel dates and then touch down in or near Northeast Missouri with one of these leading airlines:

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

How can I find cheap tickets to Northeast Missouri?
Book well ahead of time, travel on a cheaper day, use frequent flyer miles — you're not short of ways! One more is to make use of Expedia's "flexible dates" feature. Find a Northeast Missouri flight, then check out the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to Northeast Missouri was HK$1,381.
How much is a flight to Northeast Missouri?
You could have purchased a return air ticket to Northeast Missouri from anywhere between HK$1,381 and HK$2,210 in the last seven days. For one-way journeys leaving from Seattle (SEA), the lowest price during this time was just HK$691.
What are the most popular airports to fly into in Northeast Missouri?
Northeast Missouri's main point of entry is Lambert-St. Louis Intl. Airport (STL). Get your next big journey underway by locking in a fare on one of the 4,902 flights a month to this destination.
When is the cheapest time to fly to Northeast Missouri?
If you'd rather spend your hard-earned holiday dollars exploring Northeast Missouri rather than on your journey there, leave earlier in the week. The most affordable day to travel is normally Tuesday, followed by Monday. With many folks travelling on weekends, Saturday tends to have the highest ticket prices.
How much is a plane ticket to Northeast Missouri?
In the last seven days, plane fares to Northeast Missouri ranged from HK$1,381 to HK$2,210.
What months are the cheapest to book a flight to Northeast Missouri?
The ideal month to find a top deal to Northeast Missouri is February, while prices are at a premium in December. Give this month a miss if you're counting your pennies.

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Return price
HK$1,381

Explore a world of travel with Expedia

*Available to Expedia members.