
$69 Cheap flight deals from Houston (HOU) to Union (STL)
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This Weekend's Flight Deals from Houston to Union
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.
Airfares from $69 One Way, $138 Round Trip from Houston to Union
Prices starting at $138 for return flights and $69 for one-way flights to Union were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Union economy flight packages

The West End
Jan 9 - Jan 11
Houston (IAH) to St. Louis (STL)
St. Louis (STL) to Houston (IAH)
Reviewed on Feb 17, 2025


Sonesta ES Suites St. Louis - Chesterfield
Jan 9 - Jan 11
Houston (IAH) to St. Louis (STL)
St. Louis (STL) to Houston (IAH)
Reviewed on Oct 5, 2025
More About Flying To Union from Houston
Route Information for Flights from Houston to Union
Origin Airport IATA Code | HOU |
|---|---|
Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Houston to Union
Great Deals on Flights From Houston to Union
Spend more of your time and money at Union instead of sitting at your computer, searching for discount Houston to Union flights. This is why Orbitz makes it easy for you to check out destinations, plan your trip, and book your air fare, hotel, car rental, and more in just one place. Our low price guarantee means that you get great deals on flights from Houston to Union.
Flights That Fit Your Budget
Traveling on a budget? Not to worry if you are using Orbitz. We monitor thousands of fares to make sure we show you the best air ticket prices available for your travel dates. Besides amazing prices on Houston to Union flights, we offer you great deals on hotels, vacation packages, and last-minute getaways for the perfect trip.
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Search for Flights from Houston to Union on the Go
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Flights from Houston
- Houston to New York
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- Houston to Dallas
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- Houston to Phoenix
- Houston to London
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- Houston to Detroit
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- Houston to Taipei
Union Airports
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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.


