If you’ve been watching airfares and wondering whether a direct trip to Las Vegas is within reach, the numbers have started shifting in a interesting direction. Aer Lingus launched a non-stop Dublin–Las Vegas service back in October 2024, with fares dipping as low as €227 one-way — putting Sin City closer to Dublin than it’s ever been.

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Cheapest one-way: €227 (Aer Lingus) · Best day to fly: Thursday · Direct route: Aer Lingus EI 51 · Flight time: 10h 35m

Quick snapshot

1Confirmed facts
  • Aer Lingus EI 51 flies direct DUB–LAS once a week on Airbus A330-300 (FlightConnections)
  • One-way fares from €227.16 available on official schedules for specific dates (Aer Lingus)
2What’s unclear
  • Exact departure day of the week varies by season — FlightConnections notes potential schedule changes (FlightConnections)
  • Real-time prices as of May 2026 not available — fares shown reflect specific historical dates (FlightConnections)
3Timeline signal
4What’s next
  • Aer Lingus continues operating the route — check Skyscanner or Aer Lingus directly for upcoming availability
  • Off-peak windows (January, February, late November) tend to offer the lowest fares

Key pricing and route details for Dublin–Las Vegas travelers:

Detail Value Source
Cheapest one-way found €227.16 Aer Lingus (Official)
Return from Dublin €510 via Skyscanner Skyscanner
Best day to fly Thursday Kayak
Direct airline Aer Lingus (EI 51) FlightConnections
US starting fare $45 on Expedia Expedia
Flight duration 10h 35m FlightsFrom
Distance 4,968 miles (7,994 km) FlightsFrom
On-time rate 72.0% Skyscanner

What is the cheapest month to fly to Vegas?

Airfares to Las Vegas follow seasonal patterns, and the lowest fares tend to cluster in the dead of winter and late autumn. January, February, and the period between late November and early December consistently show the deepest discounts across aggregator sites. Summer months (June through August) and major US holiday periods drive prices up significantly, so targeting those quieter windows is the most reliable strategy.

Seasonal trends

Data from Aer Lingus official booking pages shows one-way fares as low as €227.16 for travel between December 9–18, 2025. For February 2026, fares of €263.71 one-way were available for dates like February 7–12. By contrast, round-trip fares for peak spring break periods and summer travel routinely exceed $600–700. The pattern is clear: flexibility on your travel month opens the door to the lowest prices.

Bottom line: Irish travelers who can shift their Vegas trip to January, February, or late November will consistently find fares €100–200 below peak-season pricing. Booking two to three months out for those windows tends to lock in the best rates.

The implication: choosing your travel month deliberately is the single biggest variable under your control.

Off-peak deals from Ireland

Because Aer Lingus operates this route, Irish departure taxes and fuel surcharges factor into the final price differently than routing through UK or continental European hubs. The Aer Lingus official site (aerlingus.com/en-ie) tends to list the most transparent pricing in euros, inclusive of taxes, air transportation charges, and fees. Cross-checking against Expedia or Skyscanner in dollars or pounds can sometimes surface currency-specific promotions, but the Aer Lingus base fare remains the most reliable benchmark.

The catch

Low fares appear in specific booking windows tied to exact dates — the most reliable way to find those deals is checking Aer Lingus directly for current availability windows.

How to get cheap flight tickets to Vegas?

Finding the cheapest Aer Lingus fares to Las Vegas comes down to knowing where to look, when to book, and how to compare apples-to-apples across sites that display prices differently. The good news is that multiple independent aggregators update in near real-time, and cross-referencing two or three of them takes less than five minutes.

Booking tips

  • Start at Aer Lingus directly. The official site (aerlingus.com/en-ie) lists economy fares from €227.16 one-way for specific dates, with clear breakdowns of what’s included. Prices shown are inclusive of taxes and fees.
  • Cross-reference on Skyscanner and Expedia. Skyscanner shows one-way DUB-LAS starting around $349 and return fares from $594. Expedia lists one-way from $374 and round-trip from $503. These differences can reflect different cabin classes or included bags.
  • Use Google Flights as a quick benchmark. Starting fares of $603 for DUB-LAS on Google Flights give a fast read on whether you’re looking at a good window or a peak-period spike.
  • Book on Tuesdays or Wednesdays if possible. Aggregator data generally shows Tuesday and Wednesday departures yielding lower average fares than Friday through Sunday departures.

Aggregator comparisons

Travelocity, Expedia, and Skyscanner each pull from the same underlying GDS data but display it differently. Skyscanner’s “Everywhere” search can help you spot which departure window is cheapest if your dates are flexible. Expedia often highlights business-class upsells alongside economy fares — a $5,791–7,427 business-class fare sits alongside $503 economy round-trips on the same page.

What to watch

Aggregator prices fluctuate hourly based on inventory — setting up price alerts on Skyscanner or Google Flights lets you act quickly when favorable windows open without manual repeated checking.

What is the cheapest day to fly to Las Vegas?

Thursday departures consistently emerge as the lowest-priced day to fly Las Vegas routes from Ireland. Data aggregated by Kayak and confirmed across multiple booking platforms shows a measurable gap between weekday and weekend departures — Saturdays and Sundays tend to carry a premium of 15–25% on comparable fares.

Weekday vs weekend

If your schedule allows a Thursday departure and a Wednesday return, you’re positioning yourself in the cheapest fare window for this route. Friday and Monday departures carry the next-lowest premiums, while Saturday departures typically align with weekend leisure travel demand and price accordingly. Skyscanner’s historical data for DUB-LAS shows Thursday fares averaging $50–80 below Saturday equivalents on the same route.

Thursday advantage per Kayak

Kayak’s internal analysis of transatlantic route pricing identifies Thursday as the single cheapest departure day for Las Vegas-bound flights across most US and European carriers. For Aer Lingus specifically, the 14:50 departure time for flight EI 51 falls on what would be a Thursday for most departure windows — which aligns with this pattern.

Bottom line: If your travel plans have any flexibility, targeting a Thursday departure and Wednesday return could save you $50–150 on a round-trip. Irish travelers with fixed schedules should still check all days — sometimes Saturday deals surface on Aer Lingus promotional pages.

The pattern: weekday departures consistently outperform weekend departures on this route.

Are there any direct flights from Ireland to Las Vegas?

Yes — Aer Lingus operates the only non-stop service from Dublin Airport (DUB) to Harry Reid International Airport (LAS). The route launched in October 2024, marking the first direct transatlantic connection between Ireland and Las Vegas. No other airline currently offers a non-stop option on this city pair.

Aer Lingus route details

Aer Lingus flight EI 51 departs Dublin at approximately 14:50 and operates once a week on the DUB-LAS route. The aircraft assigned is an Airbus A330-300, which offers in-flight meals and Wi-Fi on transatlantic sectors. This is the same equipment used across Aer Lingus’s broader North American network, providing a consistent cabin product.

“Starting October 2024, Aer Lingus is delighted to announce our new direct route from Dublin to Las Vegas. Book your flights to Las Vegas now from €499.”

— Aer Lingus Official, route launch announcement

Timetable and flight numbers

Flight number EI 51 is the designation for Aer Lingus’s Dublin–Las Vegas service. You can track live status for EI 051 through Trip.com’s flight tracker, which monitors real-time departure and arrival information. Departure times on the current schedule hover around 14:50, with arrival in Las Vegas on the same calendar day (local time) after the 10-hour-35-minute flight.

The trade-off

Weekly frequency means you have seven days of schedule flexibility at most before the next flight — confirming your exact departure date before booking is essential with a once-weekly service.

How long does it take to fly to Las Vegas from Dublin?

The non-stop Aer Lingus flight from Dublin to Las Vegas takes 10 hours and 35 minutes. That makes it one of the longer transatlantic routes departing from Ireland, reflecting the 4,968-mile (7,994 km) distance between the two cities. There is currently no connecting option that beats the non-stop on total travel time.

Flight duration

Aer Lingus lists the direct flight time at approximately 10 hours 35 minutes, confirmed across both the Aer Lingus official booking page and independent flight data aggregator FlightsFrom.com. This is consistent with other Aer Lingus North American routes of similar distance operating on the Airbus A330-300 fleet.

The upshot

At 10h 35m, the DUB-LAS flight is only slightly longer than Aer Lingus routes to New York or Boston — which run around 8 hours — despite Las Vegas being further west. The absence of a time zone penalty relative to East Coast cities makes the actual in-flight time feel comparable for passengers.

Non-stop vs connections

The Aer Lingus non-stop is substantially faster than any connection via London, New York, or other transfer hubs. A connection typically adds 4–8 hours to total journey time, depending on layover duration and the connecting carrier. There are no competing non-stop services from Ireland to Las Vegas — Aer Lingus is the sole operator on this route.

Bottom line: Aer Lingus EI 51 is the fastest way to get from Dublin to Las Vegas at 10h 35m non-stop. Any connecting itinerary will add a minimum of 4 hours to your total travel time. If your schedule can accommodate the weekly frequency, the non-stop is unambiguously the better option.

The implication: unless your schedule absolutely cannot accommodate the weekly rotation, the non-stop beats every alternative.

Step-by-step guide to booking your flight

Here’s how to move from searching for fares to holding a confirmed ticket on Aer Lingus EI 51 to Las Vegas.

  1. Check Aer Lingus for direct pricing. Visit Aer Lingus (Official) and enter your dates. The IE site shows prices in euros inclusive of taxes. Look for Thursday departures in off-peak months (January, February, late November).
  2. Cross-check on Skyscanner. Enter the same route on Skyscanner to see return fares from $594 and one-way from $349. Use the “Whole month” view if your dates are flexible to identify the cheapest departure window.
  3. Benchmark on Expedia. Expedia shows economy round-trip from $503. Compare cabin inclusions — some fares shown on aggregators may exclude checked bags that Aer Lingus includes by default.
  4. Set a price alert if timing is tight. On Google Flights, click the alert icon on your DUB-LAS search. Google Flights starts prices at $603 and will notify you if fares drop below your set threshold.
  5. Book directly on Aer Lingus. Once you’ve identified the best fare window, complete your booking on the official Aer Lingus site (aerlingus.com) to ensure the clearest fare rules, baggage policy, and change flexibility. Confirm your return day matches the available weekly EI 51 departure back to Dublin.
  6. Add-ons and extras. Aer Lingus includes in-flight meals and Wi-Fi on LAS flights. Confirm your cabin class — economy fares from $495–$608 round-trip on aggregators typically include a standard bag allowance, while business class runs $5,791–7,427 on Expedia.

“As Ireland’s flag carrier, Aer Lingus offers frequent flights, dependable schedules and a warm Irish welcome.”

— Aer Lingus Official, Las Vegas return route page

Booking directly with Aer Lingus gives you the clearest terms for changes, cancellations, and baggage — worth prioritizing over third-party aggregator bookings when fares are similar.

Related reading: Universal Studios Hollywood Tickets Prices and Deals · Universal Studios Hollywood Buying Guide

Additional sources

travelocity.com, aerlingus.com, aerlingus.com, flyteam.jp

While Aer Lingus delivers €227 one-ways from Dublin, cheap Toronto flights to Vegas hover around $95 with WestJet for quick North American escapes.

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Frequently asked questions

What airlines fly direct from Dublin to Las Vegas?

Aer Lingus is the only airline operating a non-stop flight from Dublin Airport (DUB) to Harry Reid International Airport (LAS). Flight number EI 51 operates the route once a week using an Airbus A330-300.

How far in advance should I book cheap flights to Vegas?

For off-peak months (January, February, late November), booking 8–12 weeks ahead tends to capture the best fares. Peak periods like summer and Christmas typically require 12–16 weeks. Aer Lingus launch fares in October 2024 started at €499, so early-bird promotions occasionally surface 3–4 months before departure.

Are there low cost flights to Las Vegas from UK?

UK travelers typically route through London or other hubs for connections to Las Vegas, as Aer Lingus departs from Dublin. Aggregator searches on Skyscanner or Expedia will surface connecting options from UK airports, but these involve at least one stop and longer total travel times than the direct Dublin option.

What is the flight number for Aer Lingus Dublin to Las Vegas?

Aer Lingus flight number EI 51 operates the direct DUB-LAS route. You can track live EI 051 status through Trip.com’s flight tracker.

Can I find flights to Las Vegas from Dublin under €500?

Yes — the Aer Lingus launch fare in October 2024 started from €499 one-way. More recently, specific off-peak dates have shown fares as low as €227.16 one-way. Round-trip fares under €500 are less common but occasionally appear on aggregators for specific off-peak date combinations.

What airports serve Las Vegas flights from Ireland?

The only non-stop service departs Dublin Airport (DUB) and arrives at Harry Reid International Airport (LAS). Connecting options from Ireland might route through London Heathrow, New York JFK, or other major hubs, arriving at the same LAS terminal.

Is Google Flights good for Dublin to Las Vegas?

Google Flights provides a reliable aggregate starting price for DUB-LAS routes — currently showing fares from $603. Its price alert feature is useful for tracking fare movements over time, and the calendar view helps identify the cheapest departure windows across a month.

For Irish travelers, the arrival of Aer Lingus EI 51 has changed the Vegas calculus. Where a direct connection used to mean routing through London or New York with a full day of travel, the 10-hour-35-minute non-stop from Dublin makes Sin City a realistic long-weekend destination for the first time. The fares have already dipped below €230 one-way in off-peak windows — making the total round-trip cost closer to a city-break than a once-in-a-lifetime splurge. If you’ve been putting off a Vegas trip waiting for the right deal, the window is worth watching now.

Why this matters

Irish travelers now have a direct, weekly route to Las Vegas at fares that compete with connecting options. The key is timing: targeting Thursday departures in January, February, or late November — and booking through Aer Lingus directly or cross-checking on Skyscanner for the best fare windows — gives you the strongest chance of landing a deal under €300 one-way.