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Flight Time from Las Vegas (LAS) to Washington D.C. (IAD)
Non-stop flight time from LAS to IAD: 4.61 hours. Las Vegas to Washington D.C. distance 3,349 km. Includes layover estimates and airline routes.
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- Updated June 2026
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Origin weather
Las Vegas
Destination weather
Washington D.C.
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USUS
Block time Las Vegas → Washington D.C.: about 4.61 hours (4 h 37 min) non-stop across 3,349 km (2,081 mi). The totals at one and two stopovers come out near 8.1 h and 14.1 h on typical hub dwell times, with your watch moving 3 h ahead on landing.
Las Vegas–Washington D.C. flight times at each stopover level
| Measure | Value |
|---|---|
| Airport pair | Las Vegas (LAS) → Washington D.C. (IAD) |
| Great-circle distance | 3,349 km (2,081 mi) |
| Non-stop flight time | 4.61 h (4 h 37 min) — 850 km/h + 40 min taxi model |
| One-stop total (est.) | ≈ 8.1 h (8 h 6 min) |
| Two-stop total (est.) | ≈ 14.1 h (14 h 6 min) |
| Time-zone shift | 3 h ahead (UTC−8 → UTC−5) |
Estimates use the site-wide 850 km/h cruise + 40-minute taxi model; real block times drift with winds and routing.
Swipe sideways to see the full table
Airlines planning the LAS → IAD leg start from the same arithmetic this page uses: 3,349 km ÷ 850 km/h, then the 40-minute airport allowance. Model it before booking: one stop ≈ 8.1 h total, two stops ≈ 14.1 h, per the slider above.
This 3,349 km length is the sweet spot where non-stops dominate schedules but one-stop fares are often dramatically cheaper. Factor the 3-hour shift into recovery plans: eastbound arrivals at Washington D.C. generally bite harder than westbound ones.
Nearby endpoints for the LAS → IAD run
| Alternative | Distance to Washington D.C. | Flight time from LAS |
|---|---|---|
| New York (JFK) | 328 km | 1.1 h |
| Toronto (YYZ) | 563 km | 1.3 h |
| Boston (BOS) | 634 km | 1.4 h |
Fewer than two fields sit within 300 km of Washington D.C., so the radius was widened to 700 km.
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New York (JFK) is the nearest alternative endpoint, 328 km from Washington D.C. — close enough that some fares from LAS price it as the same destination. From LAS, reaching JFK instead takes about 1.1 h — less airborne time than the 4.61 h non-stop, and the surface leg into Washington D.C. still has to be won back.
Companion flight-time pages exist for 2 of these alternatives (YYZ first among them) — see Related calculators. Remember the destination is the point: any airport below that adds more than a couple of hours of surface time to reach Washington D.C. needs a substantial fare gap to justify.
From touchdown to day one in Washington D.C.
Put a departure hour on the math: wheels-up at 10:00 from LAS puts you on the ground at IAD around 17:37 local time, once the 3-hour gain is applied. Budget the ground side too: a standard day runs $261 in Washington D.C. versus $210 in Las Vegas (hotel, three meals, two transit rides), so the arrival city sets the trip's marginal cost.
A $51 per-day gap favors staying longer in Las Vegas and moving on from Washington D.C. quickly. The modest 3-hour eastbound shift keeps the Las Vegas–Washington D.C. trip easy to absorb.
Calculation Formula
flight_time = distance / 850 km/h + 40 min taxiHow to Use This Calculator
- Note the non-stop time for LAS → IAD in the context panel above.
- Drag the stopover slider to add 0–3 connections to the itinerary.
- Read the adjusted total at each stopover level.
- Cross-check the routing notes below before picking a carrier for the Las Vegas → Washington D.C. journey.
Worked Examples
- Non-stop LAS → IAD: 4.61 h (3,349 km at 850 km/h + 40 min taxi).
- One stopover ≈ 8.1 h total.
- Two stopovers ≈ 14.1 h total.
Answers
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