$110 Cheap Flights from Seattle (SEA) to Houston (IAH)

Seattle (SEA) to Houston (IAH) at a glance

Explore a range of options for Seattle to Houston flights on this domestic short-haul route. Whether you prefer full-service airlines or low-cost carriers, you can compare itineraries to discover the one that aligns with your budget and schedule. As you prepare to visit Houston's renowned landmarks and vibrant neighborhoods, be sure to gather key details for flights departing from Seattle-Tacoma International Airport (SEA) to George Bush Intercontinental Airport (IAH).

• Fastest flight duration: around 4h 30m non-stop
• Route distance: roughly 1,900 miles (3,060 km)
• Flights per week: around 50+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $105–$450, depending on seasonality and how far ahead you book

Flights from Seattle - Tacoma International Airport (SEA) to George Bush Intercontinental Airport (IAH)

Based on recent traveler bookings, here are the top airlines favored for flights from Seattle to Houston, featuring both non-stop and one-stop options. Common layover points include Denver International Airport (DEN) with an approximate 3-hour stop, Dallas-Fort Worth International Airport (DFW) offering around a 1 hour and 15-minute layover, and Sky Harbor International Airport (PHX) with about a 4 hour and 15-minute connection. This allows you to compare prices, travel times, and cabin classes to create your ideal itinerary.

• United: As a comprehensive service airline, United provides both non-stop and one-stop flights, with one-way prices generally falling between $110 and $490. This carrier handles about 43% of the departures on this route, featuring a standard non-stop travel time of 4 hours and 30 minutes.
• Alaska Airlines: Another full-service option, Alaska Airlines offers both non-stop and one-stop services, with one-way fares typically ranging from $120 to $470. It represents around 33% of departures on this route, with an average non-stop flight duration of 4 hours and 30 minutes.
• Frontier Airlines: As a budget airline, Frontier provides one-stop service with one-way fares usually between $105 and $265. It accounts for about 10% of departures along this route, with a flight time of 5 hours and 15 minutes, and a total travel time of approximately 7 hours including layovers.
• American Airlines: This full-service carrier offers one-stop flights, with one-way fares generally ranging from $105 to $440. It makes up about 8% of the departures on this route, featuring an in-flight duration of 5 hours and 15 minutes, leading to a total journey time of roughly 7 hours including layovers.
• Delta: Delta operates as a full-service airline providing one-stop services, with one-way fares typically ranging from $105 to $540. It constitutes around 5% of the departures on this route, with a flight duration of 5 hours and 15 minutes and an overall travel time of approximately 7 hours, including layovers.

Travelers have the option to enhance their journey from Seattle to Houston with upgraded flights. Top airlines include Alaska Airlines, which provides first class and business class, United with first class, business class, and premium economy, and Delta, offering first class and premium economy.

Alternative route from Seattle (SEA) to Houston (IAH)

• Seattle to Houston (SEA-HOU): William P. Hobby Airport (HOU) is located approximately 23 miles from George Bush Intercontinental Airport (IAH). One-way economy tickets for this route generally vary from $105 to $470, influenced by the season and advance booking. Travelers can choose between one-stop and non-stop flights, with popular layover options at Dallas-Fort Worth International Airport (DFW) and Denver International Airport (DEN). Key airlines operating on this route include Southwest Airlines (a budget carrier) and American Airlines. Additionally, first class is offered on this route.

How to find the best prices for flights from Seattle (SEA) to Houston (IAH)

Getting some of the best deals on flights from Seattle to Houston is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Evening departures from 6 PM to 12 AM often offer lower prices, while morning flights from 5 AM to 12 PM are the most popular. Additionally, flying on Tuesday typically results in cheaper fares, but Thursday is the busiest travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at George Bush Intercontinental Airport from Seattle - Tacoma International Airport

Houston welcomes travelers from Seattle with a range of transport options based on price, convenience, and proximity. For departures, Seattle - Tacoma International Airport is roughly a 20-minute drive (covering about 14 miles) from central Seattle. Here's how to reach Houston efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Houston, with private rides that can be arranged in advance.
• Car rental: Renting a car from George Bush Intercontinental Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at George Bush Intercontinental Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From George Bush Intercontinental Airport, Terminal C Station, a metro station, is conveniently located about 0.3 miles away on foot, providing easy access to public transport for travelers.

Seattle to Houston Flights

The cheapest times to fly from Seattle to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Houston are during the month of February. You can find some of the cheapest flights from Seattle to Houston with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Seattle to Houston

Sunday is one of the best days to book for cheap flights from Seattle to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Seattle to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Houston in 2026. You can also book with separate airlines for your outbound and return journeys, from $110 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.