Best Flights starting from $49
from$49economy
London (Any)
Sun, Sep 13
Roundtrip
Dublin (DUB)
Wed, Sep 16
from$49economy
London (Any)
Mon, Sep 14
Roundtrip
Dublin (DUB)
Thu, Sep 17
from$50economy
London (Any)
Wed, Sep 9
Roundtrip
Dublin (DUB)
Sat, Sep 12
from$50economy
London (Any)
Sat, Sep 12
Roundtrip
Dublin (DUB)
Tue, Sep 15
from$51economy
London (Any)
Tue, Sep 15
Roundtrip
Dublin (DUB)
Fri, Sep 18
from$52economy
London (Any)
Fri, Sep 11
Roundtrip
Dublin (DUB)
Mon, Sep 14
from$54economy
London (Any)
Thu, Sep 10
Roundtrip
Dublin (DUB)
Sun, Sep 13
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Other Destinations
London (Any) to Dubrovnik (DBV) in September from $27
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London (Any) to Basel (BSL) in September from $34
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London (Any) to Rome (FCO) in September from $61
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London (Any) to Milan (Any) in September from $76
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London (Any) to Marrakech (RAK) in September from $90
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London (Any) to Vienna (VIE) in September from $94
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Flights from Other Cities
Rome (FCO) to Dublin (DUB) in September from $60
From $60
New York (Any) to Dublin (DUB) in September from $296
From $296
Pittsburgh (PIT) to Dublin (DUB) in September from $343
From $343
New Orleans (MSY) to Dublin (DUB) in September from $350
From $350
Boston (BOS) to Dublin (DUB) in September from $356
From $356
Halifax (YHZ) to Dublin (DUB) in September from $360
From $360
✈️ Flight Guide: London (Any) → Dublin (DUB)
Complete travel information for your September journey
September is an ideal month to fly from London (LOND) to Dublin Airport (DUB). Summer crowds taper off while the weather remains mild, offering comfortable travel conditions and strong flight availability. Expect frequent direct services in early morning and late afternoon operated by Aer Lingus, British Airways and Ryanair. For better fares, target midweek departures and book 6–8 weeks in advance; Heathrow and Gatwick offer more premium schedule options while Stansted often has the lowest fares. Plan 90–120 minutes for check-in at major London terminals and factor in extra time for peak commuter travel on roads and trains.
Departing from London (Any) FAQs
Searching flights from London (LOND) typically returns results from major London airports such as London Heathrow Airport, London Gatwick Airport, London Stansted Airport, London Luton Airport and London City Airport. In September you’ll find high-frequency routes from Heathrow, Gatwick and Stansted, so compare times and fare classes to get the best option for your schedule.
Yes — September maintains robust year-round service between London and Dublin with many direct daily flights operated by Aer Lingus, British Airways and Ryanair. While summer peak months have slightly higher frequencies, September still offers numerous direct morning and evening departures that suit business and leisure travelers alike.
For September travel, the cheapest fares are often found by booking mid-week flights (Tuesday to Thursday) and searching 6–8 weeks in advance. Use fare alerts and flexible date searches and compare departures from Heathrow, Gatwick and Stansted because budget carriers at Stansted sometimes lower prices on off-peak midweek slots.
Baggage rules vary by airline: low-cost carriers often charge for hold baggage and larger carry-ons, while full-service airlines include at least one checked bag depending on fare class. For September travel, arrive at the airport 90–120 minutes before departure for international routes from busy terminals like Heathrow or Gatwick, and 60–90 minutes if flying from smaller London City Airport.
September sees a drop in summer holiday crowds but still experiences busy commuter traffic, especially during morning and evening peaks. Book airport transfers, parking, or Heathrow Express and Gatwick Express tickets in advance to secure better rates and avoid last-minute surges during early-week business travel.
Travelers departing from London often connect to or originate from nearby major UK cities including Manchester, Birmingham, Edinburgh, Liverpool and Cambridge. If you're planning a multi-city trip, check combined itineraries and trains to London to ensure smooth connections to your departure airport in September.
Arriving at Dublin Airport (DUB) in September is convenient and traveler-friendly. With mild fall weather and fewer peak-summer crowds, expect efficient arrivals and good availability of ground transport to central Dublin and regional hubs like Cork and Galway. Many airlines maintain frequent schedules from London, so you’ll find multiple arrival windows throughout the day; early morning and late afternoon remain the busiest. If you plan to attend local festivals or business events, pre-book transfers or coach tickets to secure seats and save time.
Arriving at Dublin (DUB) FAQs
Arrivals from London to Dublin in September usually proceed through Terminal 1 or Terminal 2 depending on the airline; domestic and EU passengers have streamlined procedures while non-EU travelers clear passport control. Baggage belts and ground transportation are well signposted; plan 20–45 minutes from touchdown to exit for most flights, though it can be longer during peak times or if you have checked luggage.
Dublin Airport is connected by airport buses (Airlink 747, 748), local buses and scheduled coaches to cities like Cork, Galway and Limerick. Taxis and car hire are available from the arrivals forecourt; for September travel, consider pre-booking a private transfer or coach if you're traveling during events or weekends to avoid delays.
As of September travel, ensure you carry a valid passport and check visa requirements based on nationality. Health and customs requirements can change, so verify government travel advisories close to your departure date. For EU and UK citizens, standard passport checks apply; non-EU nationals may face additional questioning and documentation checks.
Morning peaks (06:00–10:00) and early evening (16:00–20:00) are typically busiest in September due to business travel and connecting flights. To avoid long lines, choose off-peak flight times when possible, enroll in automated passport control where available for eligible travelers, and allow extra time if you need car rental or coach transfers.
Popular onward destinations reachable from Dublin Airport include Cork, Galway, Limerick, Kilkenny and Belfast. Many travelers use coach services and domestic flights to reach these cities; September offers comfortable weather and good rail/coach connections for multi-city Irish itineraries.
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Events & Festivals — London (LOND) and Dublin (DUB) in September
September sees several high-profile events in both cities that can affect demand on the LOND→DUB route. In London, London Fashion Week and Open House London attract international visitors, while Dublin hosts the Dublin Fringe Festival and the early dates of the Dublin Theatre Festival. Business conferences and university term starts also contribute to midweek travel. If you plan to travel during festival weekends, book flights and accommodation early and consider midweek travel to avoid premium pricing.
Best Time to Fly London (LOND) → Dublin Airport (DUB)
For the best combination of price and convenience on the LOND→DUB route, fly midweek (Tuesday–Thursday) and avoid weekend peaks. September is an excellent month to travel: summer crowds subside, weather is still mild and airlines maintain robust schedules. Early-morning flights generally have fewer delays and lower fares, while late-afternoon services offer more flexibility. If attending events in Dublin or London, plan around festival dates to avoid higher prices.
Direct vs Connecting Flights: London (LOND) to Dublin Airport (DUB)
Direct flights are usually the best option for the London (LOND) to Dublin Airport (DUB) route, offering the shortest total travel time (about 75 minutes airborne) and fewer logistics. Connecting flights via other European hubs add significant time and complexity and are uncommon for this short route unless booked as part of a multi-city itinerary. Choose direct flights in September to maximize convenience and minimize delays; consider a connection only if it substantially reduces fare or is part of a wider itinerary.
Airline Comparison — London (LOND) to Dublin Airport (DUB)
Aer Lingus, British Airways and Ryanair are the primary carriers between London (LOND) and Dublin Airport (DUB) in September. Ryanair often offers the lowest headline fares but charges for baggage and seat selection. Aer Lingus provides a strong mix of competitive fares and full-service options including allocated seating and loyalty benefits. British Airways offers premium cabin options and frequent schedule choices from Heathrow. Compare total trip cost (ticket + bags + seat selection) rather than headline fare alone.
Seasonal Travel Tips for September — London (LOND) to Dublin Airport (DUB)
September offers mild weather across London and Dublin but can be changeable with occasional rain. Pack layered clothing, a lightweight rain jacket and comfortable shoes. Allow extra time for airport transfers during weekday morning and evening peaks, especially when traveling from Heathrow or Gatwick. If attending festivals or events, confirm transfer pickup times and pre-book buses or private transfers. Keep digital and printed copies of tickets and travel documents, and sign up for airline notifications for gate and schedule changes.
Flight Time & Schedules — London (LOND) to Dublin Airport (DUB)
Average nonstop flight time from London (LOND) to Dublin Airport (DUB) is approximately 1 hour 10–20 minutes. In September, expect multiple departures per day with peak windows in the morning (06:00–10:00) and late afternoon (16:00–19:00). Low-cost carriers may concentrate flights at Stansted or Luton, while full-service airlines use Heathrow and Gatwick. Check exact schedules since frequency can vary by day of week; early booking secures the most convenient departure times.
How to Find Cheap Flights from London (LOND) to Dublin Airport (DUB) in September
To secure the cheapest London (LOND) to Dublin Airport (DUB) fares in September, search with flexible dates, set fare alerts and compare departures from Heathrow, Gatwick and Stansted. Low-cost carriers often release flash sales; sign up for airline newsletters and use incognito searches to compare fares across booking channels. Consider midweek flights (Tuesday–Thursday) and early-morning departures for the lowest fares. Bundling with coach transfers or booking round-trip tickets can also reduce total trip cost.
Tips
- Book 4–10 weeks before September travel for best balance of price and availability.
- Compare multiple London airports (Heathrow, Gatwick, Stansted, Luton, London City) to find lower fares.
- Set price alerts and subscribe to airline newsletters for flash deals.
- Be flexible with dates and departure times — mid-week and early-morning flights are often cheapest.
- Check baggage fees for low-cost carriers to avoid surprise charges.