If you want a cheap flight from Norwich to Washington DC, you've got four airlines to choose from.
You can use the filters on your search to see more flights and find cheaper rates – Washington DC has more than one airport. So if you don't need to fly into Washington DC Washington Dulles International Airport, it's worth checking your other options. The 5976 km flight usually takes about 12 hrs 30 mins.
You can expect accommodation prices to be higher at this time of year too. Last-minute deals do crop up, but it's best to book everything in advance to avoid disappointment.