The train is cheaper and at least two hours faster than the coach, between Bristol Airport and Cambridge. Time your journey so you cross London in the middle of the day or late evening - during the rush hours, the Underground gets extremely busy, which makes travel difficult. The National Express bus stop is next to the airport car park, which is easily accessible from the terminal building. There are 16 coaches per day that run from 02:45 to 23:15. You need to change twice - in Bristol and at Heathrow Airport. The journey should take approximately 7 hours, including transfers. A standard single ticket is 69.20 GBP or you can buy an economy return for 50 GBP (not valid on Fridays).
After booking online, you will be issued with an e-ticket, which you need to print out and take with you, or an m-ticket, which is sent to your mobile phone. Otherwise you can get at ticket at the bus station.
After booking online, you will be issued with an e-ticket, which you need to print out and take with you, or an m-ticket, which is sent to your mobile phone. Otherwise you can get at ticket at the bus station. Buses from Bristol Airport to Cambridge can be very crowded at times and there is no guarantee of a place unless you book in advance.

Catch the Bristol Flyer express coach (every 15 minutes, 7 GBP single) to Bristol Temple Meads Railway station (there is not train service between the airport and Bristol) then take a train to Paddington Station, London. You need to travel across to King's Cross Station to get your onward connection to Cambridge. To get to King's Cross, take the eastbound Hammersmith and City (pink) or anticlockwise Circle (yellow) underground line to get to King?s Cross. From King's Cross, there are approximately three trains per hour to Cambridge. Allow extra time for negotiating the Underground system. Subway trains run every 2-3 minutes but there are often delays. Try to time your journey so you avoid travelling across London in the rush hour - subway trains can be impossible to board, especially if you are travelling with luggage. The total journey is approximately 4 ½ hours, but allow extra time for delays on the underground. If you book in advance you might be able to get single for as little as 18.50 GBP. A standard return is 76.50 GBP.
The UK train ticketing system is notoriously complicated. It is usually cheaper to buy your tickets up to 6pm on the day before you travel than on the day. And fares are more expensive if you travel before 09:30.
On arrival in Cambridge, it is a 15-minute walk to the town centre, or you can catch a taxi outside the station for around 5 GBP. There is also a bus that runs about every 10 minutes.
To walk, exit the station and continue along Station Road, which is directly in front of you. At the T-junction, turn right onto Hills Road, which takes you towards the city centre.
If you are looking for a deal on accomodation on arrival in Cambridge why not check out some hotels deals:
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