Flying from London to Dublin?
Add a departure date and see which side gets the sun.
Flying from London to Dublin?
Add a departure date and see which side gets the sun.
Flying from London to Dublin?
Add a departure date and see which side gets the sun.
London → Dublin
A short flight from United Kingdom to Ireland. Same local time zone at both ends.
A capital of villages
London is a vast, low-slung capital that grew by absorbing villages, so it reads as dozens of distinct neighborhoods rather than one grid. The Underground and a dense rail network make it a transit city at heart; in the center a car is a liability, discouraged by narrow streets and the congestion charge. The landmarks and business districts cluster in the middle, but much of London is the high streets and parks further out. It is large, so crossing town takes longer than the map suggests.
City access
Heathrow is the main airport, west of London and among the busiest in Europe. It has a fast dedicated rail link to the center and is also on the Underground, so reaching the city without a car is straightforward. Allow extra time at peak hours, both on the roads and through its large terminals.
Nearby airports
| 41 km / 25 mi |
Surrounding hubs
| 534 km / 332 mi | |
| 243 km / 151 mi | |
| 348 km / 216 mi |
The fair city
Dublin is a compact capital on Ireland's east coast, built along the River Liffey, with a historic Georgian core that is easy to explore on foot. The city runs on a mix of bus, tram, and a coastal rail line, dense enough in the center that a car is rarely worth the trouble. Pub culture and a strong literary history run deep here, alongside a fast-growing tech and pharmaceutical industry that has reshaped its economy in recent decades. Weather is mild and famously changeable, often within the same afternoon.
City access
Dublin Airport has no rail link of its own, unusual for a capital this size; a long-planned metro line was only approved in 2025 and remains years from construction. Express buses reach the city center in thirty to forty-five minutes depending on traffic, and taxis or rideshares cover the rest. Build extra time into the journey at peak hours, since the airport relies entirely on the road network.
Surrounding hubs
| 786 km / 488 mi | |
| 264 km / 164 mi | |
| 336 km / 209 mi |
Find out which side of the plane to sit on.
Pick your airports, set your departure time, and you're done.
We calculate the sun's position based on your flight path and departure time, then tell you which side of the plane gets direct sun and which stays shaded. No guessing, just math.
Enter your flight
Pick your departure and arrival airports and set your departure time at the departure airport. FlightSide estimates the duration and you can adjust it if you know the exact schedule.
We track the sun along your route
Your flight path is broken into hundreds of points. At each one we check where the sun is and which side of the plane it faces.
You get a recommendation
Which side of the plane to sit on, left or right, depending on whether you'd rather avoid the sun or enjoy it. The percentages and the map are there if you want to see why.
Want to go deeper? Accuracy, edge cases, polar routes — see the FAQ →
Notes from the product.
Small updates, route observations, and clearer explanations for how the app keeps evolving.
Type less, wait less, wonder more

Airport search now understands metro codes and old city names, FlightSide loads noticeably faster, and a new Feeling lucky button chooses a flight for anyone without one in mind.
A closer look at the route, not just the seat
FlightSide now shows the two cities and key details about the flight alongside the seat recommendation: confirm you picked the right airports, read the time change off two clocks, and check the return leg.
It's all about the sun (after all)
Not all sunlight reaches the side windows. FlightSide now weighs the sun’s angle to the cabin and shows twilight along the route.