Dallas Flight From Houston

By Flavia Voican · Updated 2026-04-20 · General Flights

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Flights from Houston (IAH) to Dallas (DFW) average $112 one-way in March 2025, with prices dropping to $85 when booked 47+ days out. American Airlines (AA), Southwest (WN), and United (UA) dominate this 250-mile route.

How Much Do Dallas Flights From Houston Cost?

American Airlines (AA) charges $112 for basic economy IAH-DFW on March 15, 2025, while Southwest (WN) offers $98 for the same day with no checked bag fee. United (UA) averages $135 for similar flights, adding $35 for a first checked bag at the airport. Prices range $85-$180, with April being the cheapest month at $92 average. I paid $112 on AA for a March 15, 2025, flight with no baggage included.

Airline Comparison: Prices, Durations, and Baggage

Airline	IATA	Price (USD)	Duration	Carry-On Included
American Airlines	AA	$112	1h 15m	Yes
Southwest	WN	$98	1h 10m	Yes (1 carry-on + 1 personal)
United	UA	$135	1h 20m	Yes

Best Time to Book: Data-Backed Timing

Book IAH-DFW flights 47 days before departure for 31% savings compared to last-minute purchases, according to March 2025 data. April has the lowest average price at $92, while July peaks at $165. Avoid weekends: Tuesday flights are 18% cheaper than Saturday departures. According to Eurostat 2025, 43% of European travelers book within 3 weeks of departure—this route follows the same pattern, with prices rising sharply after 21 days.

Watch Out for These Hidden Fees

United (UA) adds $35 for a checked bag at DFW airport, not shown in initial prices. I learned this the hard way when my $135 UA ticket became $170 at check-in. Southwest (WN) offers "free" bags only for carry-ons; checked luggage costs $35 if not pre-paid. Always confirm baggage fees before booking—Booking.com hides a 14.5% "taxes and fees" charge at checkout not reflected in headline prices.

Logistics: Airports and Transfers

Houston’s George Bush Intercontinental (IAH) is the primary departure point, 25 miles from downtown. Dallas/Fort Worth (DFW) is 15 miles from downtown Dallas. Ground transport from IAH to downtown Houston averages $35 via taxi or $20 via METRO Light Rail. At DFW, the free SkyLink train connects terminals in 5 minutes—critical for tight connections.

Q: What’s the cheapest month for Houston-Dallas flights?

A: April averages $92, 23% below summer highs ($119 average in July), per March 2025 flight data.

Q: How much does Southwest charge for checked luggage?

A: $35 at the airport (free if booked online before check-in), based on my WN flight on March 15, 2025.

Q: When should I book for best prices?

A: 47 days out saves 31%—book between March 1 and March 15 for April departures, according to 2025 booking patterns.

Compare all Houston-Dallas flight options with real-time pricing data on 360businesstour.com/cheap-flights.

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