Domestic route
Cheap flights from Atlanta to Houston
Hartsfield-Jackson Atlanta International Airport (ATL) to George Bush Intercontinental Airport (IAH). 688 miles, 1h 50m nonstop.
ATL to IAH at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 688 milesgreat-circle
- Typical flight time
- 1h 50mnonstop, gate to gate
- Nonstop airlines
- DLUAWNNK6 airlinesDelta, United, Southwest
- Nonstop flights per day
- 34all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday17% less than Sunday
- Time difference
- 1h behindHouston vs Atlanta
Atlanta to Houston
Round trips from $66
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 5.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppAtlanta to Houston fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Atlanta to Houston
6 airlines fly nonstop with 34 departures a day combined, plus 1 more with one stop.
- NKSpirit AirlinesLow-costNonstop · 11 flights a day · first checked bag from $55
- DLDelta Air LinesSkyTeamNonstop · 7 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 7 flights a day · first checked bag from $40
- F9Frontier AirlinesLow-costNonstop · 4 flights a day · first checked bag from $55
- WNSouthwest AirlinesLow-costNonstop · 3 flights a day · first checked bag from $35
- SYSun Country AirlinesLow-costNonstop · 2 flights a day · first checked bag from $45
- AAAmerican AirlinesoneworldConnecting via DFW · first checked bag from $40
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Dallas (DFW)AA1 airline
Which airport should I use?
AtlantaHouston has 2 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Other arrival airports near Houston
Tips for this route
- Delta, United, Southwest and Spirit all fly ATL to IAH nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $66; September 2026 is the most expensive at $94 and up, a difference of $28 per traveler.
- Departing on a Tuesday averages 17% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
Ready to compare live fares?
See every airline on ATL–IAH side by side with bags and seat rules spelled out.
Search Atlanta to HoustonAtlanta to Houston: common questions
How long is the flight from Atlanta to Houston?
A nonstop flight from Atlanta (ATL) to Houston (IAH) takes about 1h 50m gate to gate, covering 688 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from ATL to IAH?
Delta Air Lines, United Airlines, Southwest Airlines, Spirit Airlines, Frontier Airlines and Sun Country Airlines operate nonstop flights from Atlanta (ATL) to Houston (IAH), with 34 nonstop departures a day between them. One-stop options connect through DFW.
What is the cheapest month to fly from Atlanta to Houston?
Over the next six months, January 2027 has the lowest round-trip fares from Atlanta (ATL) to Houston (IAH), starting at $66 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Atlanta to Houston flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Atlanta and Houston?
Houston is 1 hour behind Atlanta. ATL is on America/New York time and IAH on America/Chicago time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.