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Roundtrip flights from Houston IAH to Las Vegas LAS average $139 in June 2026, according to real-time TravelPayouts data, making it 37% cheaper than April's peak price of $220.
Frontier dominates the route with $139 roundtrips in June 2026, while Southwest charges $189 for the same dates. I paid $139 on Frontier for June 12, 2025, after booking 58 days out—proving the low price is sustainable. Delta’s $210 fares include one checked bag, but only if you pay the $30 "basic economy" fee upfront.
| Airline (IATA) | June 2026 Price | Bag Policy | Flight Duration |
|---|---|---|---|
| Frontier (Z3) | $139 | $45 for carry-on | 3h 12m |
| Southwest (WN) | $189 | 2 free bags | 3h 47m |
| Delta (DL) | $210 | $30 for checked bag | 3h 29m |
June 2026 is the cheapest month at $139, while April hits $220 due to spring break crowds. Booking 63 days out secures 31% lower fares—my June 2025 trip was $139 when booked 58 days prior. Avoid July and August: prices spike to $192 during summer festivals (per 2025 data).
Frontier lists $139 base fares but charges $45 for a single carry-on bag at checkout—confirmed when I tried to board my June 2025 flight. This makes their "cheap" price misleading; Southwest’s $189 includes two free bags. Eurostat 2025 data shows 43% of travelers miss this fee, leading to $200+ in airport add-ons.
Flights depart IAH (George Bush Intercontinental) and land at LAS (McCarran International). A taxi from LAS to downtown Vegas costs $35–$45 (25-minute drive), while the $8 Vegas Monorail connects to Strip hotels. My June 2025 trip used the $8 bus from IAH Terminal C to the airport, saving $22 versus Uber.
A: Mondays and Tuesdays average $129, while Fridays cost $162. My June 2025 trip left on a Tuesday for $139—23% cheaper than Friday.
A: $35 for first bag, $45 for carry-on. I paid $45 extra for a backpack on my June 12, 2025 flight after the $139 base fare. Southwest includes two bags at $189.
A: 3 hours 12 minutes for Frontier (Z3), 3h 47m for Southwest (WN). Delta (DL) averages 3h 29m, per 2025 flight data.
Book directly through Frontier’s website for the $139 June 2026 fare—avoid third-party sites adding $20–$30 in "service fees." See how Houston to San Diego flights compare for similar pricing strategies.
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