How long do I need to be at Heathrow before my flight?

When to arrive. We recommend getting to the airport three hours before your flight if you're travelling internationally, or two hours if you're travelling domestically or to Europe.



The recommended check-in time at Heathrow depends on your destination and airline, but here are the general guidelines:

Standard Recommendations

  • Short-haul flights (European & UK domestic):
    Arrive at least 2 hours before departure.
  • Long-haul flights (international outside Europe):
    Arrive at least 3 hours before departure.

Key Factors to Consider

  1. Airline & Terminal:
    Check which terminal your flight departs from (Heathrow has Terminals 2, 3, 4, and 5). Some airlines may have specific advice.
  2. Check-in Method:
    Online check-in: Saves time; you may only need to drop bags. Airport check-in: Allow extra time, especially during peak hours.
  3. Baggage Drop:
    Even with online check-in, baggage drop queues can be long.
  4. Security Screening:
    Security wait times vary. Consider Heathrow’s free “Flight Ready” service (available in some terminals) to expedite security.
  5. Peak Times:
    Mornings, evenings, weekends, and holidays are busier—add 30–60 minutes.
  6. Passport Control:
    For departing flights, you’ll usually clear passport control after security. For non-UK/EU passengers, this can take longer.

Special Situations

  • Traveling with infants, disabilities, or large groups: Allow extra time.
  • Premium/First-Class passengers: Often have dedicated fast-track lanes.
  • Visa/Document Checks: Some destinations

People Also Ask

The General Guideline for How Early You Should Get to the Airport. Generally speaking, most airlines advise that you arrive at the airport at least 2 hours prior to a domestic flight, and at least 3 hours prior to an international flight.

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Check-in closes 60 minutes before long haul flights depart and 45 minutes before short haul flights depart. Pass through security at least 35 minutes before your flight departs. Be at the boarding gate at least 20 minutes before your flight departs. See the 'Boarding' section, below.

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Allow between 30 minutes and 2 hours. Immigration queueing times have increased this week (some groups have been taking nearly two hours to reach arrivals from touchdown) but it's still very inconsistent so Peter's comment above is valid.

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We recommend that you allow at least 3 hours if you're connecting between these airports. Your baggage will not be automatically forwarded so please collect all your bags before leaving Heathrow or Gatwick airport.

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We recommend getting to the airport three hours before your flight if you're travelling internationally, or two hours if you're travelling domestically or to Europe.

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95% of arriving passengers should be processed within 45 minutes - but as said above, there are so many variables...

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Check-in closes 60 minutes before long haul flights depart and 45 minutes before short haul flights depart. Pass through security at least 35 minutes before your flight departs. Be at the boarding gate at least 20 minutes before your flight departs. See the 'Boarding' section, below.

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Most airlines recommend arriving at the airport three hours before departure for international flights. It's common for international flights to start boarding earlier than domestic flights (the aircraft are often larger and have higher passenger capacities), which accounts for the earlier recommendation.

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In most cases, you will only need to go to check-in when you have checked-in online if you need to drop off an item of hold baggage. Please ensure that you are aware of the hand baggage requirements for your specific airline before you travel.

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As with so many things in travel, there's a simple answer — and a complicated one. The simple answer is: Two hours for domestic flights, three hours for international flights. More or less.

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Two to three hours is the minimum recommended time for an international layover, but more might be needed. Sally French is a travel rewards expert who joined NerdWallet in 2020. She previously wrote about travel and credit cards for The New York Times and its sibling site, Wirecutter.

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Is 2 hours enough time for international flight from UK? The Heathrow website also currently urges: We recommend getting to the airport three hours before your flight if you're travelling internationally, or two hours if you're travelling domestically or to Europe.

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When you're traveling outside of the United States, we suggest arriving at least 3 hours prior to your departure. You must be checked in at least 1 hour before your scheduled departure.

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Unsurprisingly, Heathrow Terminal 5 took the top spot. As the main hub for long-haul flights from British Airways, Iberia and American Airlines (just to name a few), T5 recorded over 100,000 passengers in September alone. Heathrow's Terminals 3 and 2 ranked similarly highly, coming in at fifth and sixth respectively.

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Everyone who boards an aircraft at Heathrow has to be security screened to UK government standards. Even if you've already been through security checks at another airport, we're obliged to screen you again before you fly from Heathrow.

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Atlanta Hartsfield-Jackson International Airport remains the busiest airport in the world with 5.2 million seats in September 2023. The composition of the Global Top 10 Busiest Airports is also the same as last month but there are a few changes to the rankings.

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The peak times at London Heathrow Airport is from 10 AM to 1 PM, and 5 PM to 8 PM. Since London Heathrow Airport is the busiest airport in the UK, you'll find it jam-packed with passengers 24/7.

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During the week, traffic between 7am and 9am can be busy and this is repeated again in the afternoon and evening, with a rush hour traffic period taking place between 4pm and 7pm. If you can avoid travelling to, from or around Heathrow Airport at these times, do so as it will save you a lot of stress.

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