IAH to LAS from $171 in economy

UAUnited Airlines

WNSouthwest Airlines

Round Trip•Economy

IAH

George Bush Intercontinental Airport

Houston, United States

LAS

Harry Reid International Airport

Las Vegas, United States

$391 USD

-56%$171 USD

Verified about 12 hours ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$310 1$171 2$171 3$308 4$320 5$171 6$310 7$219 8$171 9$219 10$271 11$310 12$297 13$449 14$345 15$297 16$297 17$436 18$436 19$436 20$449 21$436 22$423 23$423 24$436 25$436 26$436 27$449 28$436 29$445 30$423 31$436 1$436 2$436 3$436

Rare Availability

6% of dates checked are available within 10% of the lowest price

Wednesday, December 23rd, 2026

8 round-trip options

Returning

Mon, Dec 28, 2026•5 Day Trip

$436 USD

Google Flights

Returning

Tue, Dec 29, 2026•6 Day Trip

$423 USD

Google Flights

Returning

Wed, Dec 30, 2026•7 Day Trip

$423 USD

Google Flights

Returning

Thu, Dec 31, 2026•8 Day Trip

$436 USD

Google Flights

Returning

Sun, Jan 3, 2027•11 Day Trip

$488 USD

Google Flights

Returning

Mon, Jan 4, 2027•12 Day Trip

$446 USD

Google Flights

Returning

Tue, Jan 5, 2027•13 Day Trip

$423 USD

Google Flights

Returning

Wed, Jan 6, 2027•14 Day Trip

$423 USD

Google Flights

Houston (IAH) to Las Vegas (LAS) flight deal in economy from $171

George Bush Intercontinental Airport

Harry Reid International Airport

December 2026

Wednesday, December 23rd, 2026