$76 Cheap flight deals from Seattle (SEA) to Alton (STL)

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

This Weekend's Flight Deals from Seattle to Alton

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 15 - Sat, Nov 22
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$408 Roundtrip, found 5 days ago
$408
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sat, Nov 15 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Sat, Nov 22, priced at $408 found 5 days ago

Airfares from $76 One Way, $161 Round Trip from Seattle to Alton

Prices starting at $161 for return flights and $76 for one-way flights to Alton were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 11 - Wed, Dec 17
SEA
Seattle
STL
St. Louis
$161 Roundtrip, just found
$161
Roundtrip
just found
Select American Airlines flight, departing Thu, Dec 11 from Seattle to St. Louis, returning Wed, Dec 17, priced at $161 just found
Thu, Dec 11 - Wed, Dec 17
SEA
Seattle
STL
St. Louis
$161 Roundtrip, just found
$161
Roundtrip
just found
Select Delta flight, departing Thu, Dec 11 from Seattle to St. Louis, returning Wed, Dec 17, priced at $161 just found
Thu, Dec 4 - Wed, Dec 10
SEA
Seattle
STL
St. Louis
$165 Roundtrip, found 10 hours ago
$165
Roundtrip
found 10 hours ago
Select United flight, departing Thu, Dec 4 from Seattle to St. Louis, returning Wed, Dec 10, priced at $165 found 10 hours ago
Thu, Dec 11 - Wed, Dec 17
SEA
Seattle
STL
St. Louis
$166 Roundtrip, just found
$166
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Dec 11 from Seattle to St. Louis, returning Wed, Dec 17, priced at $166 just found
Thu, Dec 11 - Wed, Dec 17
SEA
Seattle
STL
St. Louis
$169 Roundtrip, just found
$169
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Dec 11 from Seattle to St. Louis, returning Wed, Dec 17, priced at $169 just found

More About Flying To Alton from Seattle

Route Information for Flights from Seattle to Alton

Origin Airport IATA Code
SEA
Destination Airport IATA Code
STL
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Seattle to Alton

Orbitz On-the-Go is your one-stop shop for discount vacation air travel. Our cutting-edge mobile tools leave you time to pack for the trip. Shop our sales on domestic flights from Seattle to Alton.

Best Bargains Anywhere

Cheap vacations start at Orbitz On-the-Go. Find the best deals on international flights from Seattle to Alton.

Complete Travel Planning

Your phone becomes a full-service vacation travel agency with Orbitz mobile phone apps. From reservations to arrivals, every detail is in the palm of your hand. Book budget flights from Seattle to Alton; add a car and hotel, share your itinerary and keep up with changes. Orbitz apps cover all the bases for you.

Totally Stress-Free

Free Alerts from Orbitz On-the-Go keep your vacation free from worry. Free Alerts updates you the moment any changes occur. You’ll always have the most current flight, gate and baggage claim details. So sit back and enjoy your low fare on Seattle to Alton flights.

More Miles Faster = Maximum Value

Orbitz On-the-Go securely stores your frequent flier and loyalty program information. Watch your miles add up when you book discount Seattle to Alton flights with Orbitz. Make your vacation mileage-friendly with low cost air tickets on Seattle to Alton flights. Orbitz is your destination for vacation value.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.