I am an American citizen, and tomorrow, i will be flying with my British husband, to live in England, for a year.
I would like to know, if there is a online website, where i can view my W2`s, for the period of 2014-2015, so that i can claim my taxes for next year?

you maytry your employer’s website if there is;however, you may contact your old employer as a first resort. Your ER is required to keep his records of employees and wages in case of an IRS audit and for worker's compensation claims or etc.or you may File Form 4506-T with the IRS if yur employer is not willing or able to supply the old W-2. the irs will supply a copy of the tax return filed along with the W-2s for a minimum fee. It can take up to 60 days to receive the copy of the return including all schedules and W-2s. These returns may only be available for the past six years. You may request only W-2 information using the same form. Form 4506-T gives you the option to request only the W-2 information filed by your employer for your ssn#.